ON 18 APRIL 1995, American terrorists demolished Oklahoma City's federal office building, killing 162 people. Two and a half years earlier, international terrorists attacked New York City's 110-storey World Trade Center. Had that explosion succeeded in undermining the structural foundation, 30,000 people would have died.
From Oklahoma City and the World Trade Center to the first act of nuclear terrorism is but one small step. Suppose that instead of mini-vans filled with hundreds of pounds of the crude explosives used in Oklahoma City and New York, terrorists had acquired a suitcase carrying a, grapefruit sized 100 pounds of highly-enriched uranium (HEV).