Thomson ReutersFebruary 15, 2013 19:45
* Brennan advocates more openness if doesn't harm national security
* Says drone strikes not used in the United States
By Tabassum Zakaria
WASHINGTON, Feb 15 (Reuters) - President Barack Obama's pick for CIA director, John Brennan, promised senators who will vote on his nomination more openness about U.S. counter-terrorism programs, saying the closely guarded number of civilian casualties from drone strikes should be made public, according to his written responses to questions released on Friday.