[Swordmaker]

With 110 pounds of HEU, it'd be trivial. With only 37 pounds, it is within our technological capacity...but not theirs.

Of course there just MIGHT be three shipments... 37 Lbs X 3 = 111 LBs = BOOM!

What the other person failed to note is that a 12.5 kilton bomb could not "level Manhattan" unless it was detonated above Manhattan. If detonated on the ground, the explosive force would be considerably reduced.

Above is not so difficult if you have suicide pilots again.

Or suicide elevator operators...

[Prime Choice]

Of course there just MIGHT be three shipments... 37 Lbs X 3 = 111 LBs = BOOM!

Agreed.