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Sarah Palin is biting back at critics who blasted her for the Facebook pic of her son standing on the family dog ... and taking a shot at the dog-eating Prez in the process.

Palin took to Facebook Saturday, targeting PETA for bashing her ... calling the org hypocrites that only give passes to celebs who have helped them.

She muses, "Did you go as crazy when your heroic Man-of-Your-Lifetime, Barack Obama, revealed he actually enjoyed eating dead dog meat?" True story, Google it.

Palin accused the org. of celeb worshiping ... then adding they treat doggie Jill better than many people treat human beings.

A rep for PETA tells us, "Palin's Facebook response shows us that she knows PETA about as well as she knows geography."

Looks like the "Guardians of Peace" scored another victory ... Sony quietly gave in to another hacker demand by wiping almost all traces of "The Interview" from its social media pages.

Hackers threatened top level Sony execs Friday saying, "We want everything related to the movie, including its trailers, as well as its full version down from any website hosting them immediately."

The movie studio almost immediately obliged ... the movie's Twitter page no longer has any tweets, the Facebook page has been deleted and all "Interview" footage has been wiped from its YouTube page.

Sad.

1:50 PM PST -- The hackers also released a message Saturday afternoon mocking the FBI ... saying, "The result of investigation by FBI is so excellent that you might have seen what we were doing with your own eyes. We congratulate you success. FBI is the BEST in the world."

Mama June is back on the attack against Sugar Bear, claiming he's still on the prowl for women ... lots of them.

June vented on her personal Facebook page ... complaining she's taking all the heat for dating Mark McDaniel while SB is playing the victim when actually he's "a cheater and a big player."

She says Sugar Bear is trying to snare girls through Snapchat. She also admits she's rifled through his phone and found concrete proof he's on the hunt.

TMZ broke the story ... Mama June claimed she broke up with SB after she found he was trolling online dating sites. But then we found out she was dating the man who served time for molesting her daughter, and everything changed.

And get this ... Mama J thinks Sugar Bear is a lady killer, warning, "he has already scammed many girls on here to fell in love with them," adding, "so baby if u think u r his one in only u r wrong big time."

Don't hate the playa.

Rihanna's patriotic gesture to U.S. troops has backfired over the picture she used to make her point ... and now the company that owns the pic has a novel way she can make good.

Coronet Diamonds created the image and posted it on its website November 11 -- Veteran's Day. Apparently the famous Barbadian liked it so much ... she posted it on her Instagram, and Twitter, but she kind of deceived her followers by Photoshopping herself into the image and then removing the jewelry company's hashtag.

So we found out Coronet has sent Rihanna a cease and desist letter. They'll settle for an apology on Rihanna's social media platforms ... an apology that makes it clear Coronet created the image.

Now let's talk about what Coronet really wants. It wants some free advertising ... which they will get in a big way with Rihanna's 142 MILLION followers.

A crazy anti-Semitic man -- who believes Paris Hilton is Jewish -- has threatened to kill her, and we've learned the LAPD is after him.

Cops just got a search warrant allowing them to track down the Instagram and Facebook account of someone who is making overt threats against Paris and her dad, Rick Hilton.

In one post, the man writes to Rick, "one month and she's dead, she's never coming home."

The man says in another post, "Invite [Paris] to the match so we can gang raper her ass hahahahahaha." And then he threatens, "I'll beat u and that bitch to unconscious."

The guy clearly thinks the Hiltons are Jewish -- which they are not. He wrote, "KILL JEWS FOR FUN," and "I know ur Jew family gives nothing" ... an obtuse accusation that the Hiltons are cheap.

Mama June's boyfriend has been booted from Facebook ... because he's a child molester.

Mark McDaniel was active on Facebook until Tuesday ... when his profile was yanked from the site. Turns out Facebook has a policy of rejecting sex offenders, but apparently they didn't know until recently ... presumably after we posted the story that McDaniel did time for molesting Mama June's child.

McDaniel's profile pic showed him cradling his granddaughter. There were various "welcome home" posts ... presumably from friends who found out he had been released from prison.

It's interesting ... June was absent from McDaniel's profile page, and we're guessing it's because they both knew it was wrong for her to hook up with him after he abused Anna.

Go ahead. Keep rubbing your eyes ... that is actually "Clerks" director Kevin Smith after shaving off his trademark beard.

Smith unveiled the bald faced pic Monday ... writing on Facebook, "Look at this goofy spaz. This is me, beardless, for the #YogaHosers green screen shoot. It's a Face-Brazilian!"

That's a ton of wax.

Tyrese went nuclear on the comedian who dared to drop some ridiculous casting couch accusations -- and safe to say, the comedian will NOT be laughing at this videotaped response ... but you will ... 'cause it's awesome.

The comedian, Spanky Hayes, claims he was beaten out for the lead in "Baby Boy" because Tyrese performed sexual favors for director John Singleton. Tyrese recorded a rebuttal to Spanky, and the hysterical theme of it is ... "You know you done f**ked up, right?"

Just for good measure -- Tyrese shot the whole comeback while walking around his mansion in a fur robe and smoking a cigar. Spanky, you've been served.

Mark Zuckerberg is going all Bill Gates .... giving a massive amount of money to help fight the world's biggest health crisis ... Ebola.

Zuckerberg and his wife Priscilla just donated $25M to the Centers for Disease Control Foundation ... he says he wants to stop the epidemic from becoming a long-term crisis like HIV or polio.

Zuckerberg said the infusion of $$$ is the fastest way to get help to frontline responders, saying "These people are on the ground setting up care centers training local staff, identifying Ebola cases and much more."

The ghost of Joan Rivers has a message for you ... BUY THE iPHONE 6!!! After all, who knows more about the cloud than a ghost?

This post appeared -- briefly -- on Joan's Facebook page Friday morning ... clearly the result of a pre-negotiated deal with Apple. Someone pulled a Ron Popeil ... set it and forget it.

The post was removed pronto.

Lolo Jones says she felt broken, unlovable and embarrassed after she was eliminated from "Dancing with the Stars" Tuesday night ... and penned an emotional letter saying she's sick of being a loser.

The former Olympian unloaded on Facebook right after she got the boot from the ballroom ... saying, "When I was dancing last night and messed up I had flashbacks of the three Olympics and that people constantly tease me about. I thought oh no here it comes again. People are going to ridicule me. I'm so tired of feeling embarrassed."

"I joined the other competitors upstairs and I couldn't force a smile on my face. I felt like vomiting and in between the other dances I went in a back room and fought back tears. I felt so broken. So unlovable. Embarssed."

Jones -- who's been RIPPED in the public over her lackluster performances at the Olympics over the years -- added, "I really wanted to stay on the show and have the layers of hurt wash away by showing the public how hard I work. I wanted to come away a victor for once. I wanted to do so good performing in public that the haters would stop teasing me."

"But that is my way of thinking. Not Gods. Instead I need to trust God that he would heal my heart. That I would not work so hard for the world to validate and redeem me but know that God already conquered that for me on the cross."

She concluded ... "My time was brief but the lesson is lasting. Thank you everyone who wrote me kind messages. You were helping me not fall into darkness."

Stephanie Hayden is now claiming she too was sexually abused as a child by her father, Will Hayden ... and will be providing information to law enforcement to aid in the prosecution of her dad ... TMZ has learned.

Stephanie -- who appeared on the Discovery reality show "Sons of Guns" with her father -- originally came to Will's defense last month after he got arrested for the alleged sexual abuse of his 12-year-old daughter.

We're told Stephanie is now recanting her original statement -- and plans on meeting with investigators in Baton Rouge as early as next week to provide specific details of the sexual abuse she allegedly suffered.

Kris Ford, Stephanie's husband ... recently posted a poem on Facebook that appears to be directed at Will: "You fooled with my wife when she was young. Sucking and groping, do you remember what was done?"

Stephanie went on FB to respond to Kris' poem ... telling a relative she gave her husband permission to post it. Both posts were eventually taken down.

An attorney for Will tells us, "After 45 shows and 20 years, this is the first I've heard of it. Her complaints arose only after her income from the show and [gun] shop stopped. She's still Will's daughter, and he loves her."

Kevin Sorbo now says he made a bonehead move in the middle of the night by trashing Ferguson protesters.

Sorbo went on TMZ Live to address his Facebook post, claiming the rioters were using the shooting of Michael Brown, "as an excuse to be the losers these animals truly are."

Kevin Sorbo unleashed a crazy rant on Facebook about the unrest in Ferguson ... accusing protesters of using the shooting of Michael Brown as "an excuse to be the losers these animals truly are."

The former "Hercules" star, who's a die-hard conservative, said on Facebook, "Ferguson riots have very little to do with the shooting of the young man."

He thinks the rioters are people who failed in life and need to cast blame for their shortcomings.

He wrote, "Hopefully this is a reminder to the African Americans ( I always thought we just Americans. Oh, well.) that their President the [sic] voted in has only made things worse for them, not better."

Sorbo then proceeded to paste the contents of a recent article from the Jewish World Review entitled, "Media Clueless About the Inner City."

12:00 PM PT -- Kevin is now apologizing for his comments.

Dog the Bounty Hunter is going high tech, because he's now figured out a failsafe way to unleash the dog pound on criminals ... thanks to War Machine.

We got Dog at LAX Saturday when he talked about his manhunt for the MMA fighter, who cops caught Friday. Dog says he's never used social media before, but he'll never be without it again, after his troops mobilized in an incredible way.

7:40 PM PDT -- Cops tell us Gracin is being held on a 5150 psychiatric hold. We're told he drove himself to a hospital, with a police escort, after they pulled him over. He's been cooperative, has spoken to his family ... and is being evaluated by doctors now.

5:33 PM PDT -- We're told cops intercepted Gracin on his way home and all they'll say is, "He's safe."

'American Idol' Season 2 finalist Josh Gracin had neighbors and police racing to his door ... after posting what looked like a suicide note in the wake of marital problems.

We're told cops responded to the former Marine's home in Spring Hill, TN -- where he lives with his wife and 4 kids -- for a welfare check after a family member saw an ominous Facebook post:

"I've loved her for 17 years ... I made mistakes ... I admitted them, told her the truth and she turned her back on me when I needed her help the most."

He continued, "Please remember me as someone who gave his all in his music ... Pray for my family as they carry on in this world without me. Goodbye."

Cops rushed to his house -- his wife was there but he wasn't. Law enforcement sources tell us police got in touch with him by phone, put him on with his wife, and he told her he was coming home.

Cops are staying at the home until Josh arrives.

Story developing ...