Ministers and ministerial students exempted from draft?

[NAO]

I was reading an article on http://www.fromthewilderness.com/ about the draft, and the author said that Ministers and ministerial students were exempted from the draft.

That seems to me like a clear case of discrimination. To exempt Radical (and moderate) Clerics from military conscription seems like a blatant case of violation separation of church and state. Besides, it opens a can of worms in that the government might have to decide who is a "legitimate" minister or student.

If someone said they were the Supreme Warlock at their local Witches Coven, would that exempt them from conscription? If I am in a book club that is reading Heinlein's "Stranger in a Strange Land", does that make me a ministerial student in the Church of All Worlds? (Share Water. Drink Deeply. You grok?)

Finally, I myself am an ordained minister. I sent $10 to the Universal Life Church back in 1989, and they sent me an official "Certificate of Ordination", along with an "Ordained Ministers Orientation Pamphlet". So, (if I weren't too old) would I be exempted from the draft?

Universal Life Church
http://www.ulc.net/

Become Ordained at the Universal Life Church
http://www.ulc.net/ordain.php?PHPSESSID=30557c2445fe726c55c27b529722425e