By Keith Laing - 09/21/12 06:16 PM EDT
TSA has reportedly tried to reassure lawmakers that it has addressed the issues that caused the security breaches at Newark airport. The airport was shut down for three hours last month after a passenger was allowed to pass to through a security checkpoint without being screened.
TSA Administrator John Pistole penned a memo to members of Congress this week telling them that "substantial improvements" have been made at Newark's security checkpoints since then, according to a report from New York City television station WNYW.
"EWR has improved and streamlined its processes in regard to remedial training and discipline of individuals involved in security incidents," Pistole wrote according to the station.
TSA has touted PreCheck as part of a larger aware from one-sized-fits-all security measures that have come under fire like pat-downs and X-ray machines, although the agency is not completely doing away with either method.
The PreCheck program allows passengers to volunteer information to the agency in exchange for the possibility of receiving expedited screening. TSA has been testing the program at nearly 30 airports since last year.