1. Various exteriors of hazardous materials team members in full gear
2. Wide shot President George W. Bush with children
3. SOUNDBITE (English) George W.Bush - U.S. President:
"We are still looking on that, we've all got different feelings about it. We are gathering as much information and as soon as we make definitive conclusions we'll share it with the American people."
4. Various exteriors of hazardous materials team members in full gear
5. SOUNDBITE (English) Ari Fleischer - White House Press Secretary:
"The investigators at the FBI are very carefully exploring all the information they have about the anthrax attack on the country. I'm not at liberty to go beyond what I've said, I can just report to you the information that I've heard, I can't give you the scientific reasons behind it but you can assume that they are based on investigative and scientific reasons
Anthrax spores that contaminated U.S. mail in October were apparently produced in the United States, the White House said Monday.
President George W. Bush said the government is mystified by the case.
Press secretary Ari Fleischer said the evidence is not conclusive but it is increasingly "looking like it was a domestic source." He said officials still did not know who delivered the anthrax.
Army officials are doubtful that potentially deadly anthrax in letters mailed to Congress originated at a military medical research center, even though spores in both places were a genetic match.
The U.S. Army Medical Research Institute of Infectious Disease obtained its supply from the Agriculture Department and shared it with five labs in the United States, Canada and Britain, spokesman Chuck Dasey said Sunday.
The Washington Post reported Sunday that the genetic makeup of the anthrax used in the letters mailed to Senate Majority Leader Tom Daschle and Sen. Patrick Leahy matched the anthrax in the Army's stockpile.
On Capitol Hill, meanwhile, technicians worked Monday to pump chlorine dioxide gas into portions of the ventilation system of the Hart Senate Office Building to kill anthrax spores still lingering there.
The Hart building has remained closed since Oct. 17, two days after an anthrax-filled letter was received in Daschle's office. The Environmental Protection Agency reported Friday that traces of anthrax remained after its initial fumigation efforts.
The Centers for Disease Control and Prevention has confirmed 18 cases of anthrax infection nationwide _ 11 cases of inhalation anthrax and seven through the skin _ since the anthrax-by-mail attacks began in October. Five people have died, all from inhalation anthrax.
