The "Shanghai Tower" under construction is seen next to the Jinmao Tower (center) and the World Financial Center in Shanghai, April 12, 2011. [Photo/Xinhua]

Armed SWAT officers take part in a tactical drill at the Beijing unit's Changping district headquarters, April 12, 2011. Crack teams from seven cities and provinces are in the capital to compete in a shooting contest, which started on Tuesday.[Photo/Xinhua]>>Link