Biologists are trying to make bird flu easier to spread. Can we not?

In 2014, work like this was put on hold after a moratorium from the U.S. government. But now, those same two research labs — the lab of Yoshihiro Kawaoka, of the University of Wisconsin in Madison and the University of Tokyo, and the lab of Ron Fouchier at Erasmus University Medical Center in the Netherlands — have gotten the green light to continue their research.