John Johnson
New atom-smasher generates hope, fear

Michelangelo L. Mangano, a respected particle physicist who helped discover the top quark in 1995, now spends most days trying to convince people that his new machine won't destroy the world."If it were just crackpots, we could wave them away," the physicist said in an interview at the European Organization for Nuclear Research, known by its French acronym, CERN. "But some are real physicists."What the critics are in such a lather about is the $8-billion Large Hadron Collider, a massive assemblage of iron, steel and superconducting wire 300 feet underground in a 17-mile-long circular tunnel on the Franco-Swiss border.The most complex piece of scientific equipment ever built, the...