As tensions escalate due to recent U.S. military strikes on Iran, security experts and federal agencies are sounding alarms about potential retaliatory attacks. The FBI has raised its terrorism alert level, warning of the increased risk of both conventional and cyber attacks. With concerns about sleeper cells and lone-wolf assailants heightening, law enforcement agencies across various U.S. cities, including Washington D.C. and Delaware Valley, have ramped up security measures. Homeland Security has advised energy companies to bolster their defenses, while local officials are preparing for possible cyber threats. Nationwide, citizens are urged to remain vigilant as the situation develops. Additionally, debates over U.S. military action against Iran continue among the public and lawmakers, highlighting the growing unease surrounding national security and potential domestic terrorism.