[wp-hackers] Limiting ability to add terms to taxonomies

[William Davis]

I'd like to create a plugin that replaces the current meta boxes on  
the post edit page with a new meta box that restricts the ability to  
add terms to that taxonomy. The reason for this, if anyone was  
wondering, is because we use several custom taxonomies that are auto- 
linked in the articles but many people have access to edit the posts,  
so we need to make it a little harder to add a term so we don't end up  
with duplicate terms (such as President Barack Obama and Barack Obama).

My question is, is there an easy way to get an array of all the  
taxonomies that have meta boxes and unset those meta boxes?

Will