This Is Why You Need Hyphens

This morning's perusal of the headlines on my My Yahoo! homepage brought this item from Reuters' Sports:

Bonds set to resign with San Francisco Giants

I clicked on the headline expecting to read about Barry Bonds's retirement, although the use of the preposition "with" rather than "from" was puzzling. It turns out that he wasn't resigning from the Giants, he was re-signing with them.

For want of a hyphen, the headline was lost....