It is hard to believe a French researcher, traveling from France to the US, was in possession of confidential information he retrieved from a US national lab. It is harder to believe they didn't arrest him for this.
>It is hard to believe a French researcher, traveling from France to the US, was in possession of confidential information he retrieved from a US national lab.
Not at all, it's much more believable than the original story. Traveling scientists frequently work at national labs.
>It is harder to believe they didn't arrest him for this.
Nondisclosure agreements are civil in nature, not criminal.
They always have been, overstaying your visa is an example of a civil violation, placing it in the purvue of ICE. You have less protections/rights afforded to you in civil proceedings versus criminal ones.