do the restrictions in fisa or in the attorney general's guidelines in any way prohibit investigationsif there are other reasons to do so? in other words, to give you a specific, wouldn't the fact that major hasan had been in repeated contact with a radical extremist islamic cleric who is a known associate of al qaeda terrorists be a reason to pursue an investigation? >> senator, i agree with you completely. to the extent that there would have been concern of infringing on major hasan's right to free speech or practice his religion, there were other factors to which you could point beyond that having nothing to do with his religion or his speech that could have caused concern. the repeated, while it's not public the content of those communications, certainly those communications and now what we're hearing from his other colleagues up at walter reed, any combination of those factors as long as it was not based solely on his exercise of his constitutional freedom, could have formed the basis of further inyiry and investigation by the f.b.i. so if we're being told that one reason this was