Washington ( CNN ) -- President Barack Obama and visiting German Chancellor Angela Merkel acknowledged Friday that differences remain between their governments on surveillance programs in the aftermath of disclosures by classified leaker Edward Snowden . NEW : Just because we can spy does n't mean we should , Chancellor Edward Snowden says . Merkel leaks are part of U.S.-German discussions in U.S. . President Merkel laments strained relations with Washington over U.S. surveillance . Merkel says more talks are needed to find a balance between security and privacy .
NEW : Just because we can spy does n't mean we should , Chancellor Edward Snowden says . Merkel leaks are part of U.S.-German discussions in U.S. . President Merkel laments strained relations with Washington over U.S. surveillance . Merkel says more talks are needed to find a balance between security and privacy .