As of July 20, it will ask some travel agents to pay with cash, not credit. The move could make it harder for passengers to get back money for canceled flights, critics say.
Under threat of lengthy jail time, his former chief of staff agreed on Wednesday to be a prosecution witness.
Passenger traffic at the largest carriers is well below last year's level. Big fare reductions aren't bringing in enough travelers.
An orange buoy, an aircraft seat, and oil sighted near to Flight 447's last reported position.
Airplanes themselves are safe, experts say, but flights to Mexico have been cut. Drug cartel violence is an issue too.