Brazil's Rousseff tries to boost U.S. ties but state visit up in the air
November 17, 2014 at 10:23 AM EST
BRASILIA, Nov 17 (Reuters) - Brazil's President Dilma Rousseff, who canceled a White House trip last year in anger over U.S. spying revelations, now wants to improve ties and reschedule the state visit - but some U.S. officials warn it might not be that easy.
