Chris Smith: “It seems like it's been worsening since 2011.”

They will drop out. You have priced them out of higher education.

It could jeopardize the whole future of high-energy physics.

We must act now, and we must act decisively. The lives of so many lie in the balance.

If the U.S. also retreats due to limits on working with foreign scientists, it could jeopardize the whole future of high-energy physics.