Derek Brodie, 42, sent more than 200 of the letters, each containing a white sheet of paper with the word "anthrax" written vertically in multi-colored block letters, according to the FBI. The letters, which contained no return addresses, were sent to government agencies, media personalities, actors and actresses, and businesses.

"He had a habit of using the same rainbow-colored pencil," said FBI Special Agent Steve Siegel. "He was sending these out to hundreds of people, various governmental agencies, media people, actresses."

None of the envelopes contained anthrax, the biological agent used in a series of unsolved 2001 mailings that killed five people. All were tested at a New Jersey Department of Health and Senior Services laboratory, Siegel said.

More Than 200 Letters Intercepted

The mailings apparently began in May. Twenty of the letters were intercepted by US Postal Service employees in Freehold Township and Westfield in May and June, according to a complaint filed by Special Agent David Goldkopf.

One reached a hospital in Freehold on June 7, prompting authorities to shut down its mail room and decontaminate workers as a precaution.

Three days later, a letter carrier intercepted 19 more of the letters from an outgoing mailbox in Brodie's multi-unit building, and from that point on, more than 200 were intercepted, all with the same format, Goldkopf said. The one to Bush, addressed to "President Bush, Abilene, TX," was found in the building's outgoing mailbox Sept. 21, according to the complaint.

Psychiatric Evaluation Pending

Interviewed by investigators last November, Brodie admitted sending the letter to Bush as well as 11 others found during a search of his apartment that also found colored pencils, blank envelopes, a hole punch and papers containing the same of some of his addressees, according to the complaint.

He also admitted sending letters to King Abdullah of Jordan and the Russian Interior Minister, Goldkopf said.

Brodie, who was charged Wednesday, was arrested without incident at his apartment about 6 am Friday by FBI agents, and investigators from the New Jersey state police and US Secret Service. US Magistrate Mark Falk later ordered him held without bail pending a psychiatric evaluation.