video calls on supporters to attack u.s. on its own soil , while claiming its citizens ' sense of safety is a ` mirage ' .
titled ` we will burn america ' , includes footage of the 9/11 terror attacks and several recent isis-inspired atrocities .
` by the grace of allah , today the mujahideen are much more stronger and they have more resources -lrb- than -rrb- before -rrb- today , it 's time for payback .