feds withhold crucial wtc evidence

afp, battalion chief orio j. palmer, british broadcasting corp, building, building performance assessment, c. spokesman bernard gifford, caused, chief palmer, collapse, crash, eric hufschmid, evidence, explosions, fire, fire marshal ronald p. bucca, firefighters, fires, greg trevor, hufschmid, i. gifford, in january, joe valiquette, meridian plaza, mike logrin, new jersey, new york, new york city, new york fire department, north tower, nyfd, on august, on september, painful questions, police, s. attorney, s. dept, sky lobby, south tower, spokesman, steve evans, tape, times, tower, while fire commissioner nicholas scoppetta, world trade center, york, zacarias moussaoui