then a capitol hill portrait unveiling ceremony for michigan congressman john cohniers. after that some of those that spoke at this year's washington ideas forum. >> on this weekend's newsmakers, congressman chris van hollen will talk about the democratic agenda in the new congress. as the top one on the budget committee, he'll also discuss the upcoming budget debate and the potential efforts by the g.o.p. to change or repeal the health care law. you can watch that interview live sunday at 10 a.m. eastern here on c-span. bhobdmonday night, on the communicators, the efforts by federal agencies to provide for the growing needs of mobile phone service providers. >> the ultimate, in the spectrum of efficient technology, let's call it dynamic spectrum access. that includes rail and i know you've heard a lot about that. and it includes some new technology that's just starting to become laboratory available, where we can use satellites to actually create a model of the world so that when somebody transmits, they will know whether they are going to interfere with somebody else.