7:06 p.m. ET: Sorry California burger lovers…

EXCLUSIVE: Federal inspectors have temporarily shut down a California meat company that provided beef for the popular In-N-Out Burger chain and the U.S. school lunch program, saying there was evidence of "egregious, inhumane handling and treatment of livestock."

Read the full story HERE

Credit: Compassion Over Killing

5:26 p.m. ET: Will Republican National Convention participants have to batten down the hatches?

The National Hurricane Center officially named Tropical Storm Isaac, just upgraded from a tropical depression. The projected storm path has it heading over Cuba and straight for Florida. The RNC kicks off in Tampa on Monday, Aug. 26.

Credit: National Hurricane Center

4:42 p.m. ET: BREAKING: In a last ditch effort, Mitt Romney asked Rep. Todd Akin to drop out of the Missouri Senate race today because of Akin's controversial comments about rape.

"Today, his fellow Missourians urged him to step aside," Romney said in a statement. "I think he should accept their counsel and exit the Senate race."

Read the full story HERE

Credit: Getty Images

3:11 p.m. ET: ABC's Linsey Davis and "Nightline" producer Alex Waterfield traveled to Baffin Island in the Canadian High Arctic to track narwhals, one of the most elusive creatures on the planet. Known as the unicorn of the ocean, they feature a single tusk that can grow up to 10 feet long. Davis and Waterfield endured inhospitable climate and dangerous, cracking sea ice on their journey with Arctic Kingdom Polar Expeditions.

Credit: Eric Coomes

Read Linsey's take on the experience, including the moment when they weren't sure they would make it back to the village, HERE.

And see photos of their journey HERE

1:24 p.m. ET: ABC News President Ben Sherwood announces late-night and primetime change. Starting next year, "Nightline" will move to 12:35 p.m. ET with a weekly primetime show. Read the full details HERE.

10:36 p.m. ET: Casey Anthony's one-year probation sentence for check fraud ends this week, giving her the freedom to go wherever she pleases.

"As of Friday, Aug. 24 at 12 a.m., nobody will be able to tell her where to be," Anthony's attorney Charles Greene told ABCNews.com.

Read the full details of what Casey Anthony has been up to this year HERE

Credit: AP Photo

9:33 a.m. ET: Endurance swimmer Diana Nyad was pulled from the water this morning after suffering from jellyfish stings, sunburn and exhaustion, ending her historic Cuba-to-Florida swim.

Credit: AP Photo

Nyad was attempting to become the first person to swim from Cuba to Florida without a shark cage. Wednesday is her 63rd birthday.

Her support crew was on the phone with "Good Morning America" this morning to talk about her condition. Watch what happened: