Federal buildings see increase of security because of threatening calls

 The U.S. government is boosting security at over 9,500 federal buildings across the country following the shooting in Ottawa, Canada last week when a gunman killed a soldier.

There have been continued calls for attacks on U.S. soil from terror groups like ISIS.

Homeland Security is calling the uptick in security “a precautionary measure” against terrorist organizations.

“There could be literary thousands potentially of people like them: disenfranchised, lonely, not successful in life, angry.  Those are the folks that are sometimes  the hardest to figure out, and they are also the hardest to stop,” says ABC News Security Consultant Brad Garrett.

The federal buildings, with an increase in security, see nearly 1.4 million visitors each day.

Officials are not releasing a list of which locations are getting extra security.