devastating terror attacks on friday leaving 38 dead at a tunisia beach resort and 30 dead at the kuwaitty mosque. this came as isis militants launch a surprise assault on syria killing hundreds of civilians months after kurdish fighters won back the city. is the strategy still working? joining me now is democratic u.s. senator chris murphy member of foreign relations committee and appropriations committee. he also just joined the board at west point. >> thanks for having me. >> listen is u.s. -- you hear about these isis attack is the united states at risk for that type of attack we saw this past week? >> i mean you know what we hear from authorities in the intelligence community and that's a standard line. they say we have no evidence that there are any credible threats against the united states from isis. but i imagine that that's what the tunisian authorities would