we're joined by retired four star general jack keen, the chairman of the institute for the study of warck we're hearing from middle east experts was complicated, expensive, required gunmen and ex closeives and all kinds of coordination. for this reason a lot of folks are pointing to israel. what are you thinking about that? >> i put my money on that for sure. the israelis are operating their team inside iran with the most successful penetration of a foreign power i've seen in my lifetime. it is quite extraordinary the extent to which this organization goes and the imagination they display in their operations. yes, they have killed nuclear scientists before. why? they want to delay iran having a nuclear weapon. in 2018 they went into a warehouse in downtown tehran and took out truck loads of classified information, brought them back to tel aviv, put it on television which provided tangible evidence that iran is pursuing the development of a nuclear weapon which it has always denied. they also participate with the united states in a very sophisticated computer virus which destroyed part o