Several senior officials say a lively debate is under way within the investigation and wider intelligence circles.

His efforts brought him into frequent contact with Washington policy and intelligence circles.

The incursions have also triggered a furious debate within American intelligence circles.

He's very highly thought of-kind of a hero in intelligence circles.

His cover, as they say in the intelligence circles, was blown.

The Vulture, as he's known in intelligence circles, would be the catch of the decade.

The case has stirred uneasiness in American diplomatic and intelligence circles.

Ms. McCarthy has been a well-known figure in intelligence circles.

Crossing borders - even Iraq's relatively porous ones - would have been tricky because he was so well known in intelligence circles.

The Spying 2.0 vision has thus created a curious culture battle in intelligence circles.