Futures Slip as Iran Strike Delay Offers Limited Relief

U.S. stock index futures edged lower Friday as investors assessed prospects of de-escalation in the Middle East after another postponed deadline for U.S. strikes on Iran's energyinfrastructure. President Donald Trump said Thursday he would again extend a deadline for Iran to reopen the Strait of Hormuz or face the destruction of its energy plants, after Tehran earlier rejected a 15-point U.S.