“McCarthy was not a real threat. He got a few people fired, most temporarily. Most of them were actually Soviet agents of one sort or another. They became martyrs and have been celebrated ever since. His goal was a purge of the State Department. He didn’t even come close. If he had somehow managed to fire every Soviet agent or sympathizer in the US government, he would not even have done any damage. As Carroll Quigley pointed out, McCarthy (and his supporters) thought he was attacking a nest of Communist spies, whereas in fact he was attacking the American Establishment. Don’t bring a toothpick to a gunfight.”

The ugly truth about government
by Mencius Moldbug

And from a 1960s speech by Major George Racey Jordan, who was responsible for facilitating the transfer of American Arms and Technology to the USSR during WWII under the Lend Lease Program. He kept a detailed diary including Primary Source documentation:

“One day it was announced in the paper that a 3 ounce bottle of Uranium was missing, and there was headlines in all the papers that this Uranium was missing, and the public mustn’t get excited because they had 600 police out on the dump with Geiger counters looking for this bottle of Uranium, they wouldn’t let the Russians get it!

So I’m standing in front of a bulletin board, there were a couple of officers standing there and they were talking about, gee, if the Russians ever get that bottle we’re sunk! One of the them said to the other, the internal policy of the pentagon is predicated on the fact that that Russians won’t get the atom bomb for another 15 or 20 years. So i turned around, casually, to these officers and said don’t worry about, i used to ship to Russians Uranium in 100 pound boxes!”

His book can be read online here, or his wikipedia entry here.