GUY RAZ, HOST:
Now, if you've been following events in the eurozone over the past few months with equal parts anxiety and confusion, you're not alone. To help put today's news into a broader debt crisis context, we're joined by Felix Salmon. He blogs about finance for Reuters.com. Felix, welcome.
FELIX SALMON: Thanks, Guy.
RAZ: In your blog today, you call this coordinated action by the central banks, and I'm quoting you, "a holiday greeting card to the financial markets." Why?