own health as better, worse, or the same. the head of social security, michael astrue, wouldn't agree to an interview. instead of explaining how he's fighting fraud, he criticized the g.a.o. last year he told congress that the screening tool that detects when someone's gone back to work generates too much information. >> we can't possibly follow up on the "leads" that would come from that in any... certainly not in my professional lifetime in the agency. >> reporter: still looking for answers, we went to the white house budget office. they wouldn't agree to an interview, either. but they showed us new technology they're trying out to fight fraud at other government agencies. the president's new budget calls for more money to review cases and save hundreds of billions of dollars. due to privacy protections, we haven't been told the ultimate fate of that t.s.a. agent in california, but by the time investigators caught up with her, she'd defrauded taxpayers out of $108,000. all while earning $50,000 a year at her federal job, collecting a