The foiling of suspected terror plot near RAF's Fairford airbase in the UK, which is used by the US to attack Iran, has revived an old question about Iran’s ability to retaliate far beyond the Middle East.
There is still no evidence that the five British men arrested, and now being bailed out, near the US-used airbase were linked to Iran, and British police say several lines of inquiry remain open. Iran has denied any connection to the incident. But the possibility of Iran-linked attacks in America and Europe has been repeatedly flagged by Western security officials and counterterrorism experts, particularly after direct US strikes on Iranian territory.