Analysis-U.S. strikes on Iran's nuclear sites set up "cat-and-mouse" hunt for missing uranium

By Francois Murphy and John Irish VIENNA (Reuters) -The U.S. and Israeli bombing of Iranian nuclear sites creates a conundrum for U.N. inspectors in Iran: how can you tell if enriched uranium stocks, some of them near weapons grade, were buried beneath the rubble or had been secretly hidden away? Following last weekend's attacks on three of Iran's top nuclear sites - at Fordow, Natanz and