Too political

I just read this:

WASHINGTON - NBC has rejected a TV ad by Freedom's Watch, a conservative group that supports administration policy in Iraq, that asks viewers to remember and thank U.S. troops during the holiday season.

NBC said it declined to air the ad because it refers to the group's Web site, which the network said was too political, not because of the ad's message.

I find this very offensive even though it prevents an ad from a conservative group from airing. Frankly, I don't think it's any business of the TV networks to screen the political affiliations of those sponsoring ads with a view to keeping certain political ideas off the air -- whether they be conservative or liberal.