LIFE AFTER TERROR By JOSEPH F. CONNOR YOU sometimes hear how the first World Trade Center attack was a warning that the city ig nored. But it wasn't the first: Tomorrow is the 30th anniversary of the New York terrorist attack that killed my father, Frank T. Connor — the Jan. 24, 1975, bombing of Fraunces Tavern. The killers struck on a warm, clear and pleasant winter's day. My dad, a 33-year-old officer of Morgan Guaranty Trust, was having lunch with clients. The bomb killed him and three others in unspeakably gruesome ways. One of his colleagues was decapitated; silverware...