Kenya Mall: It's the modern day town-square -- a gathering place that fulfills our every need -- shopping, eating, socializing. A trip to the mall is an escape on weekends. And not just in America. In Nairobi, Kenya, the upscale and modern Westgate Mall was the place to unwind at the end of the work week. It was the last place you'd expect something like this -- gunshots, explosions, armed men taking over every floor, methodically shooting anyone in their way ....