The main U.S. envoy to South Korea said Thursday that Washington will seek to resolve financial restrictions on North Korea that have hindered nuclear talks, after Pyongyang agreed to return to the negotiations following its nuclear test. U.S. Ambassador Alexander Vershbow said Washington has agreed to form a working group on the financial issue amid the six-nation nuclear talks that North Korea agreed this week to rejoin — the first sign of a relaxation of tensions after the North’s Oct. 9 test. Full Story