"How much data do domestic spy agencies now need – about everybody, not just terrorists – to safeguard national security?"    apparently no amount of data can thwart every terrorist attack (witness failed security's agencies of france, germany, U.S.).  so let us stop spending needless money which instead could be better used to educate people and take care of their health.   as well,  our liberties and freedom must be returned, repeal bill c-51.