The Vatican blasted back at a UN-authored Rights of Children report, saying its criticism of the church's stand on homosexuality is driven by critics of the church's "non-negotiable" teachings. The U.N. Committee on the Rights of the Child, whose members have included such nations as Saudi Arabia, Syria, Uganda and Thailand,accused the Vatican Wednesday of "systematically" adopting policies that allowed priests to rape and molest tens of thousands of children over decades, and urged it to open its files on pedophiles and bishops who concealed their crimes. Archbishop Silvano Tomasi, the head of the Holy See's delegation to the United...