(By CELEAN JACOBSON, Associated Press Writer) Matt Damon listened emotionally Tuesday as a Zimbabwean woman described how she was raped while pregnant during a perilous journey to cross into South Africa from her troubled homeland.The Hollywood actor was visiting refugee centers in this border town as part of his work with Not On Our Watch, a human rights group he started with other celebrities such as Brad Pitt and George Clooney to draw attention to the world's suffering peoples."I have spoken to so many people who went through so much to get to this point.