Chinese President Hu Jintao (C) checks a map to assess damages of Monday's earthquake during the flight to Sichuan from Beijing May 16, 2008.  Hu said the challenge is still daunting, the task is still arduous and the time pressing. By 4:00pm Thursday, the confirmed death toll in Sichuan alone had increased to 19,509, and more than 50,000 are feared dead in the quake. [Xinhua]