Cardinal O'Brien's admission comes a day before the Cardinals from around the world gather in Rome to begin electing a new Pope.The Syrian opposition has released a video which appears to show the exiled opposition leader Moaz al-Khatib visiting the rebel-held north of the country for the first time. Opposition sources say Mr al-Khatib entered Syria from Turkey. From there James Reynolds sent this report.Moaz al-Khatib\'s visit to Syria only lasted a few hours. Video footage taken from a car shows Mr al-Khatib walking quietly along a busy street in main beach, passersby begin to work out who he is, and they pose for pictures with him. ___________________________________________________________________________________________.But the Syrian National Coalition may feel that it is still too dangerous for Moaz al-Khatib and other leaders to move back to Syria for good.