the same can be done with a lead container wrapped in an explosive
Do you have any idea how much lead is needed, to carry enough radiated material to be effective in a "suitcase" nuke - while not killing the human carrier?
Just so you have a point of reference, read this article from wired;
http://www.wired.com/magazine/2011/10/ff_radioactivecargo/all/1
A piece of metal weighing less than 6 ounces,...
These 6 ounces emitted enough radiation to harm people standing near the container. If it harms the people standing near it,... it will harm the human carrier. To the point where they will not be able to transport the radiated material to it's destination - right?
The containment of radiated material is a real logistical change for terrorist suicide bombers.
They will actually die before they "detonate". Any other methods to contain the radiation, will ring alarms and bells. Again, 6 ounces is dangerous enough. Anything larger, or multiplied into many individual "units", will draw attention.
There is also the matter of geiger readers. They WILL pick up unusual reading of radiation and tip off security forces.
Handling radiated material is not the same as handling explosives - you do realize this, right?
This is the one point I will not bend on, until some of your fantasies about suitcase nukes actually come true.
You need to seriously stop. A lead container?? Really? Is this lead container the size of a coke can? But, let me guess, it detonates like a full size atom bomb, right?
Here is a picture of some contained radiated material in a lab:
http://en.wikipedia.org/wiki/Radiation_protection
Looks pretty heavy, don't it?
Also,...
I'm the one playing too many electronic video games?? You (as well as the others fearful of Iran) should get in touch with reality at least.