Article Photos: Brakes become key issue in deadly Calif. bus crash 5/13

Jordi Garcia, marketing director of tour operator Interbus, talks to a reporter at the company's office in a Tijuana, Mexico on Monday Feb. 4,2013. The cause of the Sunday's tour bus crash that killed at least eight people and left dozens of people injured east of Los Angeles remained under investigation.   (AP Photo/Elliot Spagat)