"I'm sorry we couldn't let you fly directly to our headquarters, but we were concerned that enemy infiltrators might observe the helicopter and locate our position."

The 1954 enemy infiltrators law under which the Sudanese were arrested allows the government to hold them without judicial review to determine if they are security threats.

He was killed by friendly fire, when he was mistaken for an enemy infiltrator while returning to Israeli positions at night.

If we find these enemy infiltrators while they are sleeping, they will be easier to identify and apprehend.

He would be vulnerable when extended, and an enemy infiltrator would be well versed in detection and combat techniques.

I want ground troops to check for enemy infiltrators around all the airports.

They're suspected enemy infiltrators, armed and highly dangerous.

Seems a couple of enemy infiltrators are on the loose.

First, it's obvious we're dealing with more than just two enemy infiltrators.

Senior officers now admit that in their haste to do so, they recruited everyone willing to join - from teen-agers and street thugs to enemy infiltrators.