Just in case you haven't seen the cartoon image. Here's a copy courtesy by Telegraph.co.uk website and also the article.
"The New York Post has apologised to those offended by an editorial cartoon that critics said was racist because it likened President Barak Obama to a chimpanzee." (2009, Telegraph.co.uk)

Continue reading here.

In my humble opinion, I've seen worst but this is just a wrong timing or maybe a good timing to create a media buzz. It's up to you to judge.

Update:
I've searched the Internet to see other controversial New York Post Cartoons and I found this one from BlackPlanet.com website titled "NY Post's Sean Delona's Most Offensive Cartoons".
Top 10 Most Offensive New York Post Cartoons