Bizarre...that would make doing business in the Middle East for US companies rather difficult.
On the other hand, there's this(from the same link):
"In 2003, two alleged Iranian agents caught photographing the No. 7 subway line beneath the East River were surprised to find themselves confronted by a cop who spoke fluent Persian. They quickly left the country. In 2003, a young undercover officer born in Bangladesh penetrated a small group of angry young immigrants, two of whom had started plotting to blow up targets in Staten Island and the subway station at Herald Square.
When it comes to disrupting potential terrorist plots, cops can use simple techniques out of bounds to the CIA or even the FBI. Cohen's detectives, for instance, might follow a suspect onto a subway and have a uniformed cop collar him for an infraction as minor as sitting on two seats at a time. Once he's taken down to the station, he may be faced with the threat that his friends will find out he was there and think he's talked. "Mostly, we don't hear from those guys again," says one of Cohen's senior operatives."