Secret Campaign Cash: Join the Live Chat

[cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2009/images/01/02/liveblogfinal.copy.jpg]

Tonight on 360°, buying elections. Millions of dollars are pouring into political campaigns sometimes pushing messages that the candidates themselves haven't even approved. It's virtually impossible to find out where the money is coming from. We're tracking the secret spending – keeping them honest. Plus, an American shot to death on a lake along the U.S.-Mexico border. Are drug cartels to blame?

Scroll down to join the live chat during the program. It's your chance to share your thoughts on tonight's headlines. Keep in mind, you have a better chance of having your comment get past our moderators if you follow our rules.

Here are some of them:

1) Keep it short (we don't have time to read a "book")
2) Don't write in ALL CAPS (there's no need to yell)
3) Use your real name (first name only is fine)
4) No links
5) Watch your language (keep it G-rated; PG at worst - and that includes $#&*)