A pickup truck’s tire separation apparently caused an accident that killed 15 people in rural South Texas, according to the Associated Press. http://www.huffingtonpost.com/2012/07/24/cause-of-texas-car-crash_n_1700089.html?1343172505&ncid=webmail1 The crash involving a 2000 Ford F-250 pickup truck took place Sunday night on U.S. Highway 59…