What do you propose he should have done?
Here is where the limits of my knowledge must be accepted. I don't know what levers the President of the United States pulls in response to a briefing of a major security threat.
In this case, I would have settled for the frat boy turned war criminal not
sneering at his subordinate's performance of his duties - as if it was some bureaucratic bullshit depriving him of his precious brush-clearing time.