An Interpol investigation into social networking groups exchanging child abuse material has targeted 55 key suspects in 20 countries, including the United States, and 12 children have been identified and removed from harm, the agency said Tuesday.

The power struggle with the Taliban in classrooms is symptomatic of broader fears about the future. As the U.S.-led military effort winds down in Afghanistan, will the Taliban tighten its grip on daily life in the country?

NATO leaders signed off on U.S. President Barack Obama’s exit strategy from Afghanistan that calls for an end to combat operations next year and withdrawal by the end of 2014.