In fact, I am worried about TacNukes - like the kind we see in James Bond movies - being smuggled INTO A CITY!
https://www.wired.com/2002/11/nukes-2/
Here is an article about loose nukes.
North Korea has ALREADY given Syria nuclear material to build a functioning nuclear weapons facility. Google "operation orchard".
I am worried that, as soon as we attack its regime, some sleeper group would use nukes somewhere.
And what do we do in general with rogue nukes? How exactly are they accounted for across every country?