U.S. Senator Mark Kirk (R-IL) is demanding to know why one person was able to cripple the nation's aviation system.
He wrote a letter to the FAA administrator calling for an immediate review of screening procedures at the air-traffic control center in Aurora.
Investigators say government contractor Brian Howard, 36, of Naperville was angry about his transfer to Hawaii. They say he started a fire in the basement of the FAA facility early Friday morning, then cut all radar feeds and most communication lines.
Kirk is also demanding Congress be provided with a report within 30 days, outlining changes to prevent anything like this from happening again.
U.S. Representative Mike Quigley (D-IL) agrees with Kirk that changes need to be made, saying the FAA cannot fall back to another flawed system. He's working to determine if further federal action is needed.