It is perfectly reasonable to maybe make one comment saying "I think congress should just abolish this abomination, and be done with it" would be a measured response to this side-issue. Spending a lot of energy arguing about the acceptability of the FISA spying on foreigners or not having any adversarial component just probably riles up people who are understandably very upset at the larger situation. I guess what I'm saying is having a long argument about all this is like being the political version of a grammar nazi.