Reports flew around social media, mainly Twitter, on Monday that police in Boston had shut down cellular networks to prevent an attacker from using a cellphone to detonate another explosive. At least one media report quoted an unnamed source with information to that effect, before later recanting.
In truth, Boston's wireless network was simply overwhelmed with the volume of calls and other communications in the aftermath of the attack. Service was slow and spotty, but never shut down. Verizon and other mobile carriers confirmed they'd never been contacted by officials asking them to shut off service.
Soon after the bombings, mobile carriers were beefing up their networks in the Boston area. AT&T made its Wi-Fi system publicly available for free to help take the load off traditional phone lines.
We almost hate to even address this stuff. We'll start with a bottom line: Anyone saying they know what happened at this point is making it up.
But that didn't stop far-fetched imaginings, often based in political ideology, from flying almost immediately after the attack.
One syndicated talk show host (who won't be named and whose content won't be linked here) tweeted that the attacks "stink to high heaven" of a so-called "false flag," or staged attack. "False flag" is an old naval term that's come to be used for a military action that's not what it appears to be.
At least one Web user was ready for this. He registered a website -- bostonmarathonconspiracy.com -- on Monday. Clicking the link reveals a white page with black text reading:
"I bought this domain to keep some conspiracy theory kook from owning it. Please keep the victims of this event and their families in your thoughts. Thank you."