(CNN) - Cameras that might have shown the man who walked through security Sunday at Newark, New Jersey, Liberty International Airport were not recording during the incident, a federal official said Tuesday.

Transportation Security Administration spokeswoman Ann Davis said TSA-funded and Port Authority-installed and -operated cameras were running but not recording at the time of the security breach on Sunday evening, which led officials to shut Terminal C for hours and re-screen thousands of passengers.

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Washington (CNN) - The U.S. government has lowered the threshold for information deemed important enough to put suspicious individuals on a watch list or no-fly list, or have their visa revoked, senior State Department officials tell CNN.

The government overhauled criteria it uses for putting possible terrorists on such lists as a result of the failed Christmas Day attack, officials said. They spoke on the condition of anonymity because of the sensitive nature of the material. Our Foreign Affairs Correspondent Jill Dougherty has the report.

Read more: U.S. changes criteria for inclusion on no-fly lists

A security breach at Newark International Airport last night left flights grounded and thousands of passengers waiting late into the night to be re-screened. The scare happened after a man walked through a screening checkpoint exit into a secure area of the terminal.

On Monday's American Morning we spoke on the phone with Dove Ballon, who was stranded at the airport last night with her husband.