I see this as the main takeaway from the article instead:

> One or two 233U bombs were tested in the Nevada desert during the 1950s and, perhaps ominously, another was detonated by India in the late 1990s. [...] intense gamma radiation 233U produces fries the triggering circuitry

...this only shows that military use is possible! For someone less concerned about safety and more concerned about having a nuclear weapon at all costs, it might be even easier. That triggering circuitry is definitely a solvable problem... brrrrrr