In conducting his investigation, the postal inspector also spoke to another Facebook founder who is unnamed in the criminal complaint.

FORBES: Feds Charge Paul Ceglia Of Trying To Bilk Facebook And Mark Zuckerberg

Call a postal inspector to report that you've received a parcel in the mail that may contain biological or chemical substances.

CNN: A dozen tips for handling mail packages suspected of anthrax contamination

Manuel Gonzalez-Latimer, a postal inspector in Miami, Florida, sought Monday to allay concerns among postal workers about possible exposure to anthrax.

CNN: Bush, postal officials urge caution with mail

If you receive a suspicious package, don't open it, isolate it, evacuate the area around it and call police or a postal inspector.

CNN: Bush, postal officials urge caution with mail

It details the charges against Borker, including cyberstalking, making interstate threats, and mail and wire fraud, from a US Postal Inspector who looked into the matter.

FORBES: DecorMyEyes Merchant May Have Requested A Court-Appointed Attorney

The complaint says that Douglas Vetach, a postal inspector with the U.S. Postal Inspection Service, spoke with Zuckerberg, who said he did not come up with the idea for Facebook until September or October 2003, months after he had entered into the contract with Ceglia, and that Zuckerberg had never received the bogus emails Ceglia cites in his lawsuit.

FORBES: Feds Charge Paul Ceglia Of Trying To Bilk Facebook And Mark Zuckerberg

"I have 1, 900 postal inspectors nationwide, and we have 1, 400 uniformed postal police officers at our major facilities, and what I have told my people, unless it is an act of violence or something you have to respond to, you have one case you're working on, and that's this one, " said Kenneth Weaver, chief postal inspector for the U.S. Postal Service.

CNN: Postal police, inspectors on anthrax case