Back to today’s briefing

Story perspectives

Trump Warns of Iranian Sleeper Cells Amid Tensions

3/12/2026

50 11 Full Breakdown

Summary

Story summary

U.S. President Donald Trump said Iranian sleeper cells threaten the United States and linked their presence to President Joseph R. Biden Jr.'s immigration policies.
He said federal authorities monitor these threats as military actions escalate after the death of Supreme Leader Ali Khamenei.
Trump cited reports that U.S. intelligence intercepted encrypted Iranian communications signaling activation of sleeper assets globally.

History

Historical Context

The 1979 Iranian Revolution overthrew the Pahlavi monarchy, establishing an Islamic Republic under Ayatollah Khomeini. This shift marked a significant deterioration in U.S.-Iran relations, leading to ongoing sanctions and military tensions. The 444-day hostage crisis further solidified anti-American sentiment, influencing U.S. foreign policy and regional dynamics, with repercussions still felt today in diplomatic and military strategies.

1 of 2

Story summary

U.S. President Donald Trump said Iranian sleeper cells threaten the United States and linked their presence to President Joseph R. Biden Jr.'s immigration policies.
He said federal authorities monitor these threats as military actions escalate after the death of Supreme Leader Ali Khamenei.
Trump cited reports that U.S. intelligence intercepted encrypted Iranian communications signaling activation of sleeper assets globally.

1 / 2