And the possibility of not being able to go to the US ever again, meaning something that will get in the way when searching other employment.
It's one thing to decide not to go to the US, it is quite another to be force to it in order to defend my employer shareholders interest on a trip mandated by them. If you send me to the US, you implicitly agree the company is fine with US borders to do whatever they want with the company data.
It is 2016, I can rebuild a whole laptop from scratch with my whole data anywhere in the world. There are affordable ways to work around the problem: provisioning a VDI and even buying a laptop on site is a fraction of the cost of flight and accommodation.