NAIROBI, KENYA. A Kenyan woman (right) walks among a herd of cattle in the Savannah neighborhood of Nairobi, Kenya on Sunday morning, February 1, 2004. A new traffic law took effect today, requiring Kenya's buses, matatus and mini-buses to use seat belts forcing thousands to either walk or seek other transportation, as vehicles weren't allowed to transport passengers without seatbelts and other safety devices. © CHET GORDON / THE IMAGE WORKS