[Ubonic]

They were trained in explosives manucfacture in the military. That's where McVeigh met Nichols.

Doesn't fully explain the choice of buildings. For example, how did they get the engineering details of the potential targets? How did they finance the research?

My guess would be the FBI. All roads lead back to the Elohim City terrorist training camp.

[mewzilla]

You might be interested in this thread. It discusses the Iraqi link to OKC.

Click here.