The FCC isn't exactly forthcoming with evidence of the alleged denial of service attack on its servers, and that's leaving some worried. Is it protecting privacy (as it claims), or stifling attempts to post comments supporting net neutrality? A slew of Senators want to find out -- and they're going above the FCC's head to make sure they get answers. Senators Al Franken, Patrick Leahy, Edward Markey, Brian Schatz and Ron Wyden have sent a letter to FBI Acting Director Andrew McCabe asking his bureau to conduct a high-priority investigation of the FCC's cyberattack claims. While they don't directly accuse the FCC of dishonesty, it's clear from the wording that they aren't just taking the Commission's word at face value.