FBI, DHS on war footing due to Iran's long history of plotting retaliatory attacks, including recent assassination attempts on President Donald Trump.

The FBI remains on high alert as U.S. escalates Iran conflict, deploying more troops to Middle East while counterterrorism teams work around the clock.

Military installations across North Carolina are on heightened alert as tensions arise overseas following the attack on Iran.

Kristi Noem announced Saturday that she's keeping an eye on potential threats to U.S. soil now that the United States is actively engaged in military action.

By Pete Schroeder and Michelle Price WASHINGTON, March 3 (Reuters) - The U.S. financial services industry is on heightened alert for potential cyberattacks amid the unfolding U.S. war in Iran, with firms stepping up monitoring for threats that often rise during periods of geopolitical conflict,

A Massachusetts Army National Guard member and Boston firefighter was among those injured by a deadly Iranian drone attack​.