No, this won't be something about vampires or the Bush administration's Middle East policies.
The American Red Cross Penn-Jersey Blood Services, who serve more than 125 hospitals in Our Fair State and Pennsylvania, is reporting that we have less than a 1 day's supply of blood; optimal level is a 5 day supply. They're out of Type o negative, and all other types are low as well.
Give blood if you can. Search here to find a local blood drive and go.