i'm having a hard time. >> what is the transaction capacity for hawala and exchange houses? i know it varies. >> some of them are quite large. they can have millions of dollars. >> up front, please. >> thank you. with the wilson center. >> i have an easy question for you. >> thank you. [laughter] >> what is the difference or similarities and differences between isil's terror financing and hezbollah's, what are the challenges to stop hezbollah's financing and isil's, thank you. >> it is an easy question. the primary difference is that hezbollah makes the vast majority of its wealth through state sponsor, that being iran and that's how isil generates its wealth, it does not have state sponsors. so, i mean, that's the answer to your question. you know, hezbollah gets hundreds of millions of dollars from iran and that's the fundamental challenge that we were talking about before, is it's very difficult for us to interfere to disrupt that. the provision of cash to hezbollah by iran. it's a difficult for us to disrupt that. but what we can do is disrupt hezbollah's access to the f