NEW : Spokeswoman : Clapper is angered by his comments on Libya . NEW : National security adviser : Clapper was giving a ` ` flat - out resources analysis '' In it , he said Libyan regime would ` ` ' '' over rebels , prompting criticism . His statement that China , will pose greatest threat to America irks Sen. Carl Levin .
NEW : Spokeswoman says Clapper is standing by his comments on Libya . NEW : National security adviser : Clapper was giving a `` flat-out resources analysis '' In testimony , he said Libyan regime would `` prevail '' over rebels , prompting criticism . His statement that China , Russia pose greatest threat to U.S. irks Sen. Carl Levin .