Lawmakers pressed Social Security Administration officials ... over a massive fraud scandal involving New York City cops and firefighters who allegedly bilked the government out of millions by falsely claiming disability from working at Ground Zero after 9/11. Rep. Sam Johnson (R-Texas), chairman of the House's Ways and Means subcommittee that oversees the agency ... convened the hearing following the stunning arrests last week of more than 100 in New York from vaunted public safety agencies known in the city as the Finest" and the "Bravest," who stand accused of filing phony disability claims. Many allegedly faked mental disabilities they claimed were as a result of the [attacks] that reduced the World Trade Center into a smoldering wasteland of rubble. Johnson demanded accountability from the acting chief of the Social Security Administration, Carolyn Colvin and agency Inspector General Patrick O'Carroll. Workers labored for months to retrieve remains of hundreds who perished in the twin towers on 9/11 and were sickened by toxic air that the feds had said was safe to breathe without respirator masks. The alleged New York scam was lucrative for the perpetrators and is estimated to have cost the Social security pension fund at least $22 million so far, with more arrests to come, according to testimony from Edward Ryan, New York SSA IG Special Agent in Charge. "When we executed search warrants we found large amounts of cash in safesand gold bars" Ryan testified.