The most preposterous thing in this story is that it could mean a “suitcase nuke” going off in New York in 5 years. A 20% enriched u-235 weapon would weigh thousands of pounds and even then likely not be very effective without lots of experimental explosions to refine the triggering explosion.
Iran has agreed to take the 20% U235 material and dilute it back to 5%. (U233 does not exist in nature – it is a byproduct from things only the US has done)
The “suitcase nuclear bomb” is a red herring and well beyond the capabilities of Iran far into the future.
You need plutonium or 90+ percent U235 and even so, it would weigh at least 100 pounds and be only in the range far less than 1 kiloton. Russia claimed to have such things, but there is little proof they exist. This article includes a “mockup” device of what the CIA thinks one would look like to scare Congress and the American Public. Uranium and plutonium are extremely heavy elements. If that device were real, you couldn’t hold it in the air with one hand.
I’ve long had this theory that Barack Obama and / or his handlers are working from a script to make him a martyr, reliving the basic narrative of the life of Jesus – and triggering a race war that destroys the US from the inside. Don’t be surprised in 2000 years if humans are rubbing prayer beads and praying to Ann Dunham.