I love the double negative. In news writing, it can often leave the meaning of a headline vague.

Here is the headline from CNN:

Bush Speaks to Anti-Abortion Protesters
http://www.cnn.com/2005/LAW/01/24/bush.abortion.ap/index.html

That headline could be read to mean The president is speaking to those protesting the anti-abortion movement.

Or, it could be read to mean The president is speaking to those protesters who are Anti-Abortion.

Whether anti-abortion is a noun or an adjective makes this headline particularily fun.