WordPress: copy posts to another taxonomy
I have a custom post type called local-news, with two custom taxonomies: impactkicker and postkicker. Both have the same terms, but postkicker dont have any posts.
I would like to copy all posts tagged from impactkicker to postkicker, whats the best way to do that?
(example: copy Post under impactkicker with term=art, to postkicker with term=art)