1.   But even this amount has been called into question as the Justice Department investigates possible collusion among some PCS auction entrants.

2.   But U.S. officials say it now points to the possible collusion of military officials who are central to U.S. drug-enforcement efforts in Mexico.

3.   Remember when the Bruins cut Dmitri Khristich free and his agent, Larry Kelly, made less-than-veiled references to possible collusion among club owners?

4.   Several members of Congress, favoring more sinister views, are demanding an investigation of industry practices and possible collusion in setting prices.

5.   The charges against Sciascia were part of an investigation into possible collusion between leading companies and the officials that carry out audits for the Treasury.

6.   The investigation into possible collusion within the secretive auction world began three years ago, but it was thought to be dormant until a few months ago.

7.   The Justice Department has launched a probe of possible collusion by bidders in a Federal Communications Commission auction of licenses for wireless personal communications services.

8.   The U.S. Justice Department is investigating Nasdaq dealers for possible collusion.

9.   While online auctions are thus ripe for manipulation, tracing possible bidding collusion is extremely difficult.

10.   ADM and other major grain processors are under investigation for possible collusion in setting lysine, citric acid and corn sweetener prices.