With the NATO Summit less than a week away in Chicago, additional security measures are springing into action.

A Newark airport security supervisor has been accused of using the identity of a slain New York man for 20 years.

Chicago's network of police cameras has proven more effective in reducing crime in high-crime areas than in low-crime neighborhoods.

Due to unclear protocols and poor reporting and monitoring system, the TSA is only reporting 53 percent of incidents to its headquarters.

Seventy-two officers were feloniously killed in the line of duty during 2011, according to preliminary statistics from an FBI report.

Metra, a commuter train service, announced its plans to ramp up security for the NATO Summit, including closing 26 stations on Monday, May 21.

The American Civil Liberties Union said that border inspectors have used excessive force and performed humiliating body searches on travelers entering the United States from Mexico.

Americans are less concerned about nearly all aspects of security than they were 12 months ago, but an overwhelming majority consider security issues very important when assessing presidential candidates, according to research by Unisys Corporation.

Montrealers using the métro system will see an increased police and transit authority security presence on their station platforms after a trio of smoke bombs shut down the system on Thursday.

TSA agents discovered a disassembled .40 caliber gun hidden inside three stuffed animals in a Providence airport.