c. greg scott, scholar to you. he is the executive director of the committee for human rights in north korea. and in beijing we have an italian, a senior fellow at the ty, her institute, a non profit, think tank a warm welcome to you, or thank you for joining us on inside story gentlemen. now obviously there's plenty to discuss, but i do want to start with the practicalities of the agreement. now one of the big ticket items we're talking about is these regular deployments of a u. s. nuclear submarine to south korean water south korean harbors. but correct me if i'm wrong, if a u. s. nuclear submarine is at a south korean harb, i believe it's too close to actually target north korea. sean, is this then really just for show? well, thank you. yeah, in some sense it is for show it as a show of commitment and resolve from the united states that they to have the capability, much like north korea has tried to demonstrate lately of some rain launch ballistic missile capability. and that they will deploy to the peninsula if