share: digg facebook twitter LONDON (AP) — Markets breathed a huge sigh of relief on Monday after President Barack Obama said U.S. lawmakers agreed to a last-minute deal to raise the U.S. debt ceiling, preventing the world's largest economy from defaulting. Obama said Republican and Democratic leaders thrashed out the details of a deal that would cut more than $2 trillion of federal spending over the next decade and avoid a potentially devastating default. A failure by U.S.