Associated Press: The state of Florida filed a lawsuit Saturday against the oil company BP and the cement contractor Halliburton over the Deepwater Horizon oil spill, becoming the fourth state to seek damages for the 2010 disaster. The suit, among other things, faults BP for not changing the batteries on the rigs blowout preventer. It also accuses Halliburton of installing faulty cement barriers. The complaint by the Florida attorney general, Pam Bondi, was filed in United States District Court in Panama City....