[infoseek12]

I can’t address many of your objections but I don’t think putting it in a van would be a problem. Organizations sometimes use fiberglass body panels that look like normal metal ones but are transparent to RF in these kinds of situations.

[elihu]

I sort of assumed that if this is an RF weapon the attackers would just have a hotel room directly above or below the intended target, maybe even some structural modifications to the floor/ceiling.

[nitrogen]

Not that it's proof or anything, but supposedly ICE or a similar org has undercover backscatter XRay vans. Don't remember where I read that, but it was years ago.

[ceejayoz]

Definitely a thing. The NYPD has them as well.

https://www.propublica.org/article/drive-by-scanning-officia...

> ABC News reporters Richard Esposito and Ted Gerstein provide one of the few accounts of the backscatter van in a book they wrote chronicling a year inside NYPD's bomb squad. Describing the security ahead of President Bush's motorcade to the 2004 Republican convention, they wrote that every vehicle entering the street in front of the hotel was ordered to drive between two unmarked white vans, which X-rayed each vehicle for bombs.

[janekm]

Driving between two vans suggests that it's not back-scatter though... "Just" low energy x-ray probably?