[philman_36]

Intelligence operations never destroy the only leads they have but do just as happened in this case, they watch and learn the entire operation before making an assessment that nothing else can be gained by allowing continuance of the operaton.
It takes more than a decade, over ten years, to determine that nothing else can be gained by allowing continuance of the operaton?
Please!
Gullible I'm not. You, on the other hand, seem quite disposed to gullibility.

Can you give me another incident, any incident, similar in nature to this decade long investigation? I'd like to see that.

[Jumper]

Gullibility or stupidy. If you are involved in intelligence operations or their oversight one might take you seriously.

[aristeides]

Individual agents may have monitored these guys, but they were not allowed to do anything more. If Al-Arian was known to be a threat, would he have been allowed to meet with Bush and then visit the White House?