Hydrogen cars = potential terrorist threat?

I've recently been on a training course (yes, just as tedious and pointless as such things usually are) and at one point we got sidetracked onto a discussion of hydrogen powered cars. I said that the main obstacles to implementing hydrogen powered cars as an alternative to petrol and diesel were lack of infrastructure to distribute the hydrogen to people who might own the cars (not a lot of petrol stations have hydrogen pumps, for example), and that the production of hydrogen isn't yet at a stage where it can be a) profitable or b) actually better for the environment than burning fossil fuels. The tutor/instructor/course leader said that that wasn't true and the main problem was the possibilities of terrorists taking the hydrogen cells and turning them in to bombs.



I think he's confused about what a hydrogen powered vehicle is. I think he's thinking of it as a car with a battery containing hydrogen which you charge up from the mains (and he did talk about recharging the cell in the vehicle, rather than actually filling it up with hydrogen), as if it's the same thing as what powers the Terminator. That, in the third film, does get turned in to a bomb.



Everything I can find online supports what I'm saying and I can find no reference to what he's saying, but that doesn't mean that there isn't maybe a kernel of truth in what he's saying. And this is usually a good place to find people with in-depth knowledge on a broad range of subjects, so here I am.



So, he's finding it hard to differentiate between fact and fiction, right?