1.   Brophy said the man was not considered a suspect, but investigators hope he can shed light on what started the blaze.

2.   Investigators hope to shed light on what started the fire.

3.   Ashcroft said investigators hope that releasing the photographs will alert Americans to suspicious mail if more letters are sent.

4.   Attorney General John Ashcroft said investigators hope the letters will produce new leads while informing Americans of the type of mail that should raise suspicion.

5.   But investigators still hope for clues from the wreckage, and from interviews with maintenance workers and fighter pilots who were scrambled to see what was going on.

6.   By studying pieces of burned metal, investigators hope to map the progression of the fire, and trace it to its source.

7.   Congressional investigators had hoped to talk to Bacanovic late this week, and he had tentatively agreed to that.

8.   Criminal investigators hope that reconstructing the center of the plane will either reveal evidence of sabotage, or help them rule out a bomb or missile.

9.   He added that investigators are hoping to interview additional witnesses.

10.   He said that investigators hoped to interview the crew Friday, and that the contents of the cockpit voice recorder were being reviewed.