Enriching enough weapons grade uranium is hard...ENOUGH for a worthwhile yield bomb....but enriching uranium is not difficult. We were doing it 60 years ago with analog punch-card computation...and finding a "bomb" to put it in is not difficult. Developing high yield capabilities from uranium=easy...but finding a hunk of metal to hold it in is difficult??
Enriching uranium isn't "hard"--It's radio-era technology. Having the money and man-power to develop enough weapons grade uranium is what's difficult. And whether or not they're ICBM capable is moot when you're concerned about terrorist acts from "people" instead of a "nation." But finding a chunk of metal to house the uranium when you are capable of enriching it?
If every topic is as nonsensical as the "Iran isn't able to make a tube of metal to house the high-yield bomb they've produced," then I'm pulling out any money I have to get good and drunk while I watch the apocalypse.