Manhattan overcome by world's biggest fart. No risk to homeland security, says White House Chief-of-Staff.

Authorities are investigating the source of a mysterious gas-like odor Monday that stretched across a large part of Manhattan, including Rockefeller Center..and I'm in the mood for a good fart joke. "One thing we are very confident of, it's not dangerous," New York Mayor Michael Bloomberg said at a news conference. Department of Homeland Security spokesman Russ Knocke said there was no indication of terrorism and no credible intelligence to suggest any imminent threat to the city. He said the agency is closely monitoring the situation since they don’t really have anything better to do than stand around and sniff giant, harmless farts. Are you sure terrorists aren't practicing their new WMD -- synchronized farting? You should look into that, Russ...

Across the Hudson River, Jersey City, New Jersey, mayor's spokeswoman Maria Pignataro said when she left her downtown apartment Monday morning she was immediately hit with gas fumes. "If you were in a gas station, [the odor] would be magnified 1,000 times," she told CNN. "The smell was very strong. It was very scary," said Yolanda Van Gemd, an administrator at ASA, a business school near the Empire State Building that was evacuated as a precaution. The mayor advised people affected by the smell to open windows and turn on fans to ventilate rooms. Some early speculation names Britney Spears’ beer shits as the source. [source]