wide open to hacks. which has very primitive security from, in many cases, a decade ago or more and staff that is really not trained in security. so, it's extremely vulnerable. americans deserve to have confidence in our vote. >> dr. stein, the computer scientists say they see patterns which may raise some questions but they admit that is not evident. do you have any reason to believe or have you seen any direct evidence that anyone hacked the voting systems in michigan, wisconsin or pennsylvania? >> no. the computer experts are very frank about this. we do not have a smoking gun. on the other hand, we have a system which invites hacking, tampering and malfesance. you shouldn't have to wait for the airplane to crash in order to have quality assurance on your airport. in order to have safeguards to