U.S. , European officials join for child pornographer sting . 3 girls ages 11 to 13 rescued in Belgium , dozens more found in Europe . Arrests turn up people who traded child porn , sexually abused children , officials say . Some included dangerous offenders who not only traded child pornography but also sexually abused children , the officials said . Inquiry began with pornographic video found in U.S. that came from U.S. .
U.S. , European officials join for child pornographer sting . 3 girls ages 11 to 13 rescued in Belgium , dozens more found in Europe . Arrests turn up people who traded child porn , sexually abused children , officials say . Inquiry began with pornographic video found in U.S. that came from U.S. .