US stock futures fell Thursday as an Israeli attack on Iran shook global markets, leading oil prices to spike as the Israeli defense minister declared a state of emergency. Futures attached to the Dow Jones Industrial Average (YM=F) dropped 1.5%. S&P 500 futures (ES=F) plunged 1.6%, and those attached to the tech-heavy Nasdaq 100 (NQ=F) sank 1.7%. On Thursday night, Israel conducted what it called a "preemptive strike" against Iran, citing fears over development of nuclear weapons in Tehran. Explosions erupted across the Iranian capital, reports said. Crude oil (CL=F) soared 8% as the strikes hit the third largest producer...