F93VC_160530_304
Existing comment: (1) 8:42am: United Airlines Flight 93 takes off for San Francisco about 25 minutes late.

(2) 9:24am: Flight 93 receives a message from United Airlines dispatcher. "Beware any cockpit intrusion. Two aircraft in NY, hit Trade Cnter builds." At 9:26am Captain Dahl responds, "Ed confirm latest msg plz -- Jason."
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