In Jerusalem's Old City, there are dozens of churches, but as Christmas beckons there is just one Santa Claus -- a towering Palestinian former basketball player. Each December, the streets sparkle green and red as Christian pilgrims and others arrive to celebrate Christmas in Israeli-annexed East Jerusalem. Seven years ago one resident, Issa Kassissieh, transformed the ground floor of his 700-year-old home into a grotto, complete with candy, mulled wine ...