Obama says the teamwork, courage and quick-thinking actions of the three averted "a real calamity."
The president says the three friends represent "the very best of America."
Alek Skarlatos, Spencer Stone and Anthony Sadler have been widely lauded for their actions to stop the attack.
They've already made appearances on late-night talk shows, been in a parade and earned France's highest honor from President Francois Hollande.
