Homeland Security Inspector General John Roth said Tuesday his team has uncovered "significant vulnerabilities" in the Transportation Security Administration's conduct of airport screenings, among other shortcomings.
 
Roth's testimony before the Senate Homeland Security Committee followed IG reports that the TSA failed to identify 73 workers with links to terrorism, and failed to detect simulated weapons and other dangerous items in 96 percent of tests conducted at airport screening checkpoints.
 
"We have deep concerns about the manner in which TSA manages this risk," said Roth.
 
Established after 9/11

TSA was established after the terrorist attacks of September 11, 2001, in which hijackers slammed jetliners into New York's World Trade Center as well as the Pentagon.