You may find a Scriptural word study of terms and names associated with masonry to be very interesting and consistent with the conspiracy theories presented by Cooper. Craftsmen, builders, overseers, masons, have an interesting history. Entrance to masonry is prohibited for those who declare their belief in God through faith in Christ, but allowed of those who simply declare a belief in God. The linkages between the occult and the Kabalah in Judaism, is very consistent with a number of passages speaking of builders and masons and possibly may be associated with the conspiracy spoken of by Cooper.
For example in Mat 21:42 Jesus saith unto them, Did ye never read in the Scriptures, The stone which the builders rejected, the same is become the head of the corner: this is the Lord's doing, and it is marvelous in our eyes?
This same report occurs in 3 of the 4 Gospels. Its import may be more significant than merely restating an allegory of our Lord's omnipotence.
Also in Revelation, the destroyed Babylon will no longer have any builders or craftsmen found to repair it.
I've heard stories about the Masons, Illuminati, Scripture Codes and such. I haven't had enough time to read more on those theories (yet)
I posted this for my own reference to look up more about what Cooper may have found out in Vietnam.