national top officials are comparing the total state of danger to the months before the 9-11 attacks. >> i'm here to say the warning lights are here again. today the digital infrastructure u structure that serves this country is literally under attack. >> reporter: they oversee the country's defense on the voting structure. on offense, it's less clear with the nsa, fbi and military taking roles. >> we need more connective tissue, between people doing law enforcement and people charged with protecting our different assets in the digital realm. >> and last night senator mccaskill talked to our affiliate about the attempted hacking. >> we discovered because microsoft contacted the senate and the senate personnel let us know. so we have been aware of