Internet cache of Perry/Aga Khan curriculum were removed from search engine results

Jihad Watch reports that all traces of the Texas school curriculum involving Aga Khan were erased even from the online search engine caches. Atlas Shrugs has some screenshots of them here, however.

Even if Rick Perry isn't too concerning a politician on the subject, was that a good idea to have the info taken down? You can decide, but it may have been a foolish move on their part.