Words fail me

and now apparently also some school students in the US. Alex Tabarrok at Marginal Revolution points us to this:

The 9,000-student K-8 district this week pulled all copies of Merriam-Webster's Collegiate Dictionary after an Oak Meadows Elementary School parent complained about a child stumbling across definitions for "oral sex."

The decision was made without consultation with the district's school board and has raised concerns among First Amendment experts and some parents.

Other parents and Menifee residents, though, have praised the district's decision, saying a collegiate-level dictionary is inappropriate for younger children.

So now dictionaries are only allowed to have "approved words" in them?