It's definitely the facilities. There are a significant number of facilities in the U.S. LaserNetUS, which I mentioned, was developed around four years ago and was developed for this purpose of bringing more people to the U.S. and creating a united effort in developing plasma physics.
They were falling behind Europe and Asia, which were developing far ahead of the U.S. They have multi-petawatt facilities that are being created, such as the ELI, the extreme light infrastructure.