barry blechman with the stimson center. if you want to join the conversation, have questions, 202-748-8000. republicans, 202-748-8001. independents, 202-748-8002. before we get to the calls, what keep up the to current u.s. nuclear arsenal? what is the price tag? is very e price tag high and going to be higher. the cbo, congressional budget estimated this modernization program i $1.2ribed will cost between and $1.5 trillion dollars over next 30 years. the same amount as tax cut that trillion. host: what is the main cost here? $1.5 thrillion? guest: these are very expensive, systems. he submarines and submarine launch missiles are probably the most expensive. the bomber will be very expensive, no doubt. and we don't know how much the be, theyd missile will are just starting to design the follow-on. ost: when it comes to the u.s. nuclear posture, what is our -- this term, nuclear posture review, is something that we've talked about a bit in the past, specially several years ago when last visited, remind us what that is. guest

barry blechman with the stimson center.f you want to join the conversation, have questions, 202-748-8000. republicans, 202-748-8001. independents, 202-748-8002. before we get to the calls, what keep up the to current u.s. nuclear arsenal? what is the price tag? is very e price tag high and going to be higher. the cbo, congressional budget estimated this modernization program i $1.2ribed will cost between and $1.5 trillion dollars over next 30 years. the same amount as tax cut that trillion. host: what is the main cost here? $1.5 thrillion? guest: these are very expensive, systems. he submarines and submarine launch missiles are probably the most expensive. the bomber will be very expensive, no doubt. and we don't know how much the be, theyd missile will are just starting to design the follow-on. ost: when it comes to the u.s. nuclear posture, what is our -- this term, nuclear posture review, is something that we've talked about a bit in the past, specially several years ago when last visited, remind us what that is. guest: