The house and senate are now out of session for their summer district work periods. Both return for legislative work on tuesday, september 8th. Theyll continue debate on the Iran Nuclear Agreement during the 60day review period. Join us later today for live coverage of remarks from author greg granden, a history professor at new york university. He argues that to understand americas current foreign and public policy, one must examine the actions of former National Security adviser Henry Kissinger. Hell talk about his book, kissingers shadow, at politics prose bookstore here in washington. Watch it live here on cspan2. Now, heres a look at whats on tonights edition of the communicators. Host and youre watching the communicators on cspan. Weve been talking with marc tayer, author of televisionaries about the development of digital television. This is the second half of our conversation. Mr. Tayer, we talked about the 25 years that digital tv has been in place, weve talked about its devel