Stock futures edge higher, Wall Street on track for strong week

By Ryan Vlastelica NEW YORK (Reuters) – U.S. stock index futures edged higher on Friday, with major indexes on track for a week of strong gains, though geopolitical concerns remained in view as the tenuous situation in Ukraine continued. The biggest East-West confrontation since the Cold War ramped up after U.S. President Barack Obama targeted some of Russian President Vladimir Putin's closest long-time political and business allies in response to Russia's seizure of Crimea from Ukraine. Russia retaliated with sanctions of its own against top U.S. politicians. In another facet of emerging market concerns, Nike Inc late Thursday said growing pressures from weaker emerging market currencies would take a big toll on its profit in the current quarter.