For what it's worth, I think
citizenzen "source please" post is not about the evils of preferential hiring, rather it's a rather vague way of saying "you're wrong about what 'affirmative action' is."
All of you should read this write-up published on the Stanford Ecyclopedia of Philosophy.
http://plato.stanford.edu/entries/affirmative-action/
It presents the origin of the phrase "affirmative action" (LBJ's 1965 executive order 11246 -
http://www.archives.gov/federal-register/codification/executive-order/11246.html) that specifically forbids any consideration of race, etc.
"The contractor will take
affirmative action to ensure that applicants are employed, and that employees are treated during employment,
without regard to their race, color, religion, sex or national origin."
It wasn't until 1972, during the Nixon administration, that Revised Order 4 was released by the Secretary of Labor, which required companies take "affirmative action" to "correct the deficiencies" in their employment of minorities and women.
So depending on which era of "affirmative action" a person or regulation is from, they can mean two very different things.