ASHINGTON, June 7— A re-examination of years of terrorist plots and attacks around the world, including the 1993 World Trade Center bombing, suggests that American intelligence agencies profoundly underestimated Al Qaeda's reach and aspirations for more than a decade as it grew from obscurity into a global terrorist threat, lawmakers and investigators said this week.As Congressional investigators look back far beyond the series of signals missed before the Sept. 11 attacks, they are seeking answers to many questions about Al Qaeda that law enforcement and intelligence agencies still cannot answer themselves, officials said.In particular, they said, Congressional investigators are trying...
