As it turns out, there were actually two legitimate bomb threats in two separate incidents yesterday.
While the pipe bombs were themselves fake, they apparently looked real enough. The reason why the Longfellow Bridge was shut down wasn't because of Lite Brites, but because of one of the fake pipe bombs. Same thing with the evacuation of a medical office for Tufts-New England Medical Center on Harrison Ave.
The police already have the a suspect for the Tufts case, but not for the Longfellow Bridge case.
When were the simulated pipe bombs found? Right around 1 p.m., shortly before city and state officials realized the Lite Brites didn't pose a danger.
Suddenly, the late-afternoon hysteria — not to mention the pissed off reactions — on the part of city and state officials makes a hell of a lot more sense.
While the city's safety people are scattered all over the city looking for Lite Brites, they had two simulated pipe bombs in two different locations in apparently unconnected incidents.
What's interesting is that there have been some commenters over on b0st0n claiming a connection to the Boston Police Department stating that there were legitimate bomb scares in the city yesterday, legitimate scares that got buried underneath the load of crap about the Lite Brites. These people have been pretty much either ignored or made fun of.
It took one Google minute to find this information out. Note that it's a very short article.
ETA: Information about the two legitimate bomb scares are starting to show up in round-ups about the Great Lite Brite Hunt of 2007. However, the information about the legitimate threats are buried almost at the end of the article.
Fox12 in Providence has a mention, but you'll have to read almost to the end.
NBC11 in San Francisco makes note of the pipe bomb that was found in the medical office basement, again buried in the middle of the story.
Just pointing out that there's more than one source for it besides some commenters on b0st0n and The Boston Herald.
ETA2: The BPDNews, which is kind of an electronic feed that anyone can check into, makes note of the 1:02 p.m. simulated pipe bomb that was found in a desk draw at the New England Medical Center.
Once you read that piece of information, read more. It turns out there was a flurry of bomb threat calls into the Boston Police Department all right around that time. Some pointing to Lite Brites, but one pointing to the simulated pipe bomb found on the Longfellow Bridge.