He pushed, prodded, and gouged his sculptures into existence. But for this hard-living, chain-smoking legend of 20th century art, the goal was more impossible than beauty; Alberto Giacometti hoped to make his artwork feel, however faintly, alive. His ragged, bone-thin statues and haunting portraits are just some of the works in "Giacometti," a sweeping retrospective at New York's Guggenheim Museum. Tony Dokoupil reports.
