After Capt Taft hangs up phone after speaking to Vincent, he calls the Airman First Class (A1C), a Corporal. Corporal is a rank/salutation in the USMC and the US Army.
When the newspaper headline was seen the word "prophecy" was misspelled as "prophesy".
The impostor posing as Captain Taft states that a harmless mist will kill all the humans in the town. Were the mist harmless, it would not kill anyone.