joshua landis talks about serious, the effectiveness of u.s. policy. and josh describes his field experiment to test whether the offices of members of congress are more likely to grant access to contributors. we'll take your call and you can join the conversation on facebook as well. live at 7:00 a.m. eastern on c-span. >> the tenets that are applicable are the fact that whatever we do in the cyber arena, international law will pertain that if we find ourselves getting to a point where we believe that cyber is taking us down our armed conflict scenario that the rules and the law of armed conflict will pertain in this domain as it does in any other. i don't think cyber is inherently different in that regard. i think those sets of procedures, those sets of policy and law as a nation have stood us in good step. >> this weekend on c-span, senate armed services takes up intelligence and military nominations, saturday morning at 10:00 eastern. and on book tv. amy parents and jonathan allen take a look at hillary clinton's career since her defeat. on c-span 3, america