foreign assault. my question, admiral rogers, starting with you, is what do you see as the greatest cyber security threats facing our country? and what specifically should we be doing about it to protect ourselves? >> so a small question. when i loo at the chaemg chall and the let's in no particular order, significant extraction of insight that is generating economic advantage for others. that is eroding advantage for us at times as a nation. that is, as you have seen in this russian piece, where not just the extraction but then the use this information adds a whole other dimension. what concerns me beyond all that is what happens as we start to move in an environment in which not only is information being -- i've heard some people use the frais phrase weaponized.