People walk in the street January 14, 2010 in Port-au-Prince. As aid begins to pour in to Haiti, experts are stressing the importance of coordination between a weak central government, a constellation of non-governmental groups and international governments. After being hit by four successive hurricanes that left untold damage two years ago, Haiti suffered a massive 7.0-magnitude quake Tuesday that devastated the capital and the central region of the country, which was already the poorest nation in the Western hemisphere. AFP PHOTO/JULIAN TACK