Rwanda: French troops advised on genocide -- author

French troops advised Rwandan Hutu extremists how to hide their gruesome work from spy satellites, the author of a new book on the central African nation's 1994 genocide said on Thursday. Silent Accomplice, by British researcher and author Andrew Wallis, gives what the author says is new evidence of French complicity in the 1994 slaughter of Rwandan Tutsis and moderate Hutus, by militias formed by the Paris-backed Hutu government.