Berlin's Humboldt University — named for its founder, the 19th century philosopher and linguist Wilhelm von Humboldt, and his brother, naturalist Alexander von Humboldt, pictured here — is one of several German universities attracting U.S. students. More than 4,000 Americans are studying in German universities. Markus Schreiber/AP hide caption

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The University of North Carolina at Chapel Hill faces charges of NCAA violations including the existence of sham classes and grade inflation for student-athletes. Gerry Broome/AP hide caption

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Syrian children listen to a teacher during a lesson in a temporary classroom in Suruc refugee camp on March 25 in Suruc, Turkey. The camp is the largest of its kind in Turkey with a population of about 35,000 Syrians who have fled the ongoing civil war in their country. Carl Court/Getty Images hide caption

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An employee at the American Disposables Inc. factory works on the assembly line in October 2009 in Ware, Mass. The state has seen rapidly expanding income disparity in the past 50 years as highly educated tech and financial workers have seen big gains and inflation-adjusted income has shrunk for the poorest residents. Spencer Platt/Getty Images hide caption

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Edward Blum, director of the Project on Fair Representation, announced at a Nov. 17 news conference the filing of two lawsuits challenging admissions policies at Harvard and the University of North Carolina, Chapel Hill. Manuel Balce Ceneta/AP hide caption

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Dental students use practice dummies Aug. 27 in a newly renovated section of Grand Rapids Community College in Grand Rapids, Mich. Health care is one field for which a recent study found that a community college degree produced a strong financial return. Zach Gibson/MLive.com/Landov hide caption

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California has become the first U.S. state to define when "yes means yes" in sexual assault cases on college campuses, after a bill sponsored by state Sen. Kevin de Leon was signed into law Sunday. Rich Pedroncelli/AP hide caption

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Florida Sen. Marco Rubio, shown here at an event in Washington last month, spoke with NPR's Morning Edition about the country's economic challenges. Molly Riley/AP hide caption

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Harvard Square, a large triangular area located in the heart of Cambridge and adjacent to Harvard University and near MIT University — two of the world's top-ranked institutions of higher learning. Darren McCollester/Getty Images hide caption

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President Obama takes the stage at the University at Buffalo on Thursday. Jacquelyn Martin/AP hide caption

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