Add Yahoo as a preferred source to see more of our stories on Google. The U.S. recently intercepted encrypted messages believed to be from Iran that could serve as an “operational trigger” for ...

Add Yahoo as a preferred source to see more of our stories on Google. If the United States government knows where Iranian sleeper cells are operating inside the country, someone should probably arrest ...

U.S. officials have expressed mounting concern over the potential for Iranian "sleeper cells" on American soil following the interception of about 1,500 Iranian nationals at the southern border during ...

Concerns about potential Iran-linked sleeper cells are rising as the Department of Homeland Security remains unfunded and Tehran and its proxies threaten retaliation over U.S.-Israeli strikes that ...

As tensions rise between the West and Iran, some U.S. officials are sounding the alarm about the possibility of so-called "sleeper cell" attacks within the United States, with Republicans leveraging ...

The United States has intercepted encrypted communications believed to have originated in Iran that may serve as “an operational trigger” for “sleeper assets” outside the country, according to a ...

Sen. Ted Cruz (R-Texas) warned this week that the danger posed by Iranian-linked sleeper cells operating inside the U.S. has “never been higher,” as tensions escalate between the two nations. “The ...

American counterterrorism agencies are quietly monitoring suspected sleeper cells on U.S. soil in the wake of joint U.S.–Israel strikes on Iran, stepping up surveillance amid heightened fears of ...

The U.S. recently intercepted encrypted messages believed to be from Iran that could serve as an “operational trigger” for “sleeper assets,” according to a federal government alert sent to law ...