Oh, no! Run for the hills:

A new variety of unusually powerful Internet attacks can overwhelm popular Web sites and disrupt e-mails by exploiting the computers that help manage global Internet traffic, according to security researchers.
…
“This would be the Katrina of Internet storms,” Silva said.
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Experts call the attack technique a “distributed reflector denial of service.”

I wonder if the problem that we have been having with blogger is related to this?
Read more about it here.