Below I have you a link to an article on Reuters which is a good sample why I don't like the Union system in the United States. Don't get me wrong, I am not anti union per se.
Unions have a very important role to play in a capitalistic economy, but sadly the current Union system in the States can't fulfill this role.
I believe we should look over the pond to Germany for a better system.

http://www.reuters.com/article/2012/...8AC0HP20121113