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as you are speaking, lindsey graham is taking to twitter here and apparently of what the president said a bik drept g diy between president trump's statement and dni coates' warning. >> we should note here again, this is the first time we got a press briefing since president trump made his nomination to the supreme court before that. >> craig, when you talk to cyber officials, they make an extinction between the influence campai campaign and infrastructure campaign. what most of the conversation is on capitol hill is the influence of the cap pain ampaign and usil media or facebook or making certain movement for voter box. the more challenging question and something that cyber kmapd command is working on is how you protect the infrastructure. in the past what the white house have said is they talked about the infrastructure side of this, we are taking measures and certain boundaries to make our system more secure. the influence question is much more difficult. you talk to cyber officials about this and any national security officials and it is a difficult challenge to maintain u.s. election integrity

graham. that's face the nation, margaret's got a busy show on sunday right here on cbs. s busine, ahead, jonathan reveals the mystery behind gp in afarmer's field. >> an archeological treasure has been uncovered ♪ ♪ >>> in europe, this summer, the drought and a high flying drone has unveiled an ancient treasure. jonathan traveled to new grange ireland to investigate it's sudden appearance. >> reporter: good morning, what farmers consider a curse, archaeologists are calling a blessing. that drought revealed what can only be seen from a bird's-eye view. and if you look closely across this field of wheat, you can likely see several dark markings in the shape of a perfect circle. they're not extra terrestrial, but they are a gaeteway to another world. in a farmer's wheat field, a drone captured this just over a week ago. a perfect circle as wide as 1 1/2 football field. >> what went through your mind. >> my first thought was what's going on there, what is it? >> reporter: it is not -- it's a community center built around 5,000 years ago. it's similar to evening land's famous stonehenge, this irish version was likely built using