Gulf oil disaster - A leak in a crucial piece of equipment may stall BP's effort to stop the massive oil gusher in the Gulf of Mexico. The equipment, called a choke line, started leaking Wednesday, another setback for the beleaguered company in its hope of stopping the disaster.
BP will need to fix the leak before it can run the vital tests that could show whether an end to the environmental disaster is finally in sight, the company said. There was no timetable for when the leak was to be fixed, a company spokesman said early Thursday morning.
Arizona immigration challenge - A Phoenix police officer's challenge to Arizona's new immigration law could be settled in a court hearing at 1 p.m. ET Thursday. Phoenix police officer David Salgado has sued Arizona Gov. Jan Brewer and is asking a federal judge to stall the implementation of the law until it can be proved that it is constitutional. Brewer has asked the judge to dismiss the lawsuit.
Wall Street reform –– The Senate is expected to vote Thursday morning to finish up Wall Street reform , overcoming a last 60-vote procedural hurdle that, once cleared, assures safe passage to President Obama's desk next week. The bill aims to strengthen consumer protection, shine a light on complex financial products and establish a new process for shutting down giant financial firms that areÂ in trouble.
Casey Anthony trial - Casey Anthony may face her mother and brother if they take the stand at 2 p.m. Thursday in Orlando. The state is expected to argue that 911 calls placed by Cindy Anthony in July 2008 should be admitted at her daughter's murder trial next year.
On the scene of the rig explosion - Mark Mead, Scott Russell and Bradley Shiver thought they were going to spend a few days out in the Gulf fishing for yellow fin tuna like they had done many times before.
They fish near the rigs because the fish are attracted to them. They noticed a light in the distance and something didnâ€™t look right. It seemed like a rig was on fire. They called the Horn Mountain rig to see if anyone knew anything. Before the rig could respond they heard a woman's voice. â€śMayday, mayday, mayday, this is the Deepwater Horizon. We are on fire!!â€ť There has been an explosion and we are abandoning the rig.â€ť
They were the first to arrive and will share their story with AC360 Thursday night.