U.S. tensions with China are fraying long-cultivated academic ties. Will the chill hurt U.S. interests?

News Snapshot:

Open this photo in gallery: Chinese students wait outside the U.S. Embassy for their visa application interviews on May 2, 2012, in Beijing.Alexander F. Yuan/The Associated Press In the 1980s, Fu Xiangdong was a young Chinese virology student who came to the United States to study biochemistry. More than three decades later, he had a prestigious professorship in California and was conducting promising research on Parkinson’s disease. But now Fu is doing his research at a Chinese university. His American career was derailed as U.S.-China relations unravelled, putting his collaborations with a Chinese university under scrutiny. He ended up resigning....