Egyptian plainclothes police secure the area near the site of an explosion in Cairo February 22, 2009.[Xinhua/Reuters]
![Egyptian plainclothes police secure the area near the site of an explosion in Cairo February 22, 2009.[Xinhua/Reuters]](http://images.china.cn/attachement/jpg/site1007/20090223/000bcdb95f1d0b0c473b12.jpg "Egyptian plainclothes police secure the area near the site of an explosion in Cairo February 22, 2009.[Xinhua/Reuters]")