know big threat integrity vote president democrat party operatives lol russians least concern u.s. government gear unprecedented effort protect tuesday presidential election cyber attack u.s. officials tell nbc news lot eye presidential election normally would senior obama administration official said.cyber center department homeland security justice department fbi well pentagon cia intelligence agencies alert extra staff hunt possible threat officials say.the concern high intelligence officials tell nbc first time hundreds military intelligence cyber experts work top secret facilities include underground bunker monitor intelligence u.s. presidential election react threat federal government communication command systems hand deck senior intelligence official said.u.s officials accuse russia use cyber operations meddle election hack democratic party account leak material embarrass hillary clinton campaign.american officials worry russia use cyber capabilities try disrupt presidential election possibly release fake document create bogus social media account design spread misinformation.on tuesday former nato commander admiral jam stavridis tell cnbc concern possible russian activity include dump false document attack u.s. power grid maybe one three chance happen insignificant say stavridis.on friday hacker know guccifer 2.0 u.s. officials say front russian intelligence tweet threat monitor u.s. elections inside system nbc obama unleash hundreds intelligence agents protect elections outside forces…hacker know guccifer 2.0 warn threat inside system