It is past time to start tracking all shipping from Iran and other Muslim ports. When Iran gets nukes they won’t announce it, but they are likely to squirrel some away in cargo ships, dock at US ports and detonate them. And possibly use ships as launch platforms for missiles.
For all here, is it possible or plausible for a newly minted nuclear power, i.e. Iran, to sneak a viable nuclear weapon into a US port, hidden in a shipping container? Could such a thing be shielded to prevent authorities from detecting it and tumbling to the plan?