Even if it is good policy, and even if there are no security concerns--it is bad politics, period. Remember, most people can't even name their own senator--so to think that the average American will get the facts, and/or research the issue, and think things out (the way that most on FR do) is short-sighted and naive.
Anything that allows Hilllary, Chuckie, Howie or the Democratic Party to bolster their already minimal/questionable/non-existent national security credentials (regardless of whether they are right or wrong)--only serves to harm the President and the Republican Party.
Sometimes doing the right thing is bad politically.