You'll never guess what they're challenging now.

From nj.com:

"Bottom line, that material is bizarre," said Jeff Gellenthin, who learned about the material through one of his daughter's friends. Gellenthin, also of Mantua Township, expressed his concerns in a fiery e-mail sent to the school last week where he characterized the translation as "pornography" and "sheer smut."

C'mon.  Guess before you follow the link.  Just do it.  I bet you a bazillion dollars that you'll be wrong.