21.   Ashcroft said numerous promising leads were being followed up.

22.   Attorney General John Ashcroft said numerous promising leads were being followed up.

23.   Billy Martin, the Washington attorney representing the Levys, said private investigators he hired continue to uncover promising leads, which have been shared with authorities.

24.   But despite some promising leads, attempts to find them have not been successful so far.

25.   FBI special agent Jim Bogner said at a news conference Saturday that authorities have some promising leads, and he invited whoever was responsible to contact the FBI.

26.   FBI special agent Jim Bogner said Saturday that authorities had some promising leads, and he invited whoever was responsible to contact the FBI.

27.   No one has yet found the pot of gold at the end of the Russian technology rainbow, but brokers say they have identified several promising leads.

28.   There are some promising leads out there.