China-U.S. In Yuan Reform Accord

The U.S. and China reach an agreement on exchange rate reform, but underlying tensions remain over North Korea.With Pyongyang again sparking regional tensions, US Secretary of State Hillary Clinton called for an "effective and appropriate response" to North Korea as the two countries agreed to work together on resolving the crisis.She and US Treasury Secretary Timothy Geithner led a mammoth 200-strong delegation including several cabinet-level ministers to the Chinese capital, underlining the importance of the two-day "Strategic and Economic Dialogue".The world's biggest and number three economies moved forward on several trade issues that have dogged ties for months -- but no closer to resolving one key sticking point as China refused to budge on the value of the yuan.