1.   It helped him solve dozens of mail fraud and mailed threat cases, he said.

2.   There have been more than a hundred anthrax threat cases in recent years, a number that, more recently, appears to have been rising steadily.

3.   Ashcroft said four people in the United States have been charged in false anthrax threat cases so far.

4.   Attorney General John Ashcroft said four people in the United States have been charged in false anthrax threat cases so far.

5.   Four people have been charged in four false anthrax threat cases so far, Ashcroft said.