41.   The travel agents say that limited antitrust immunity will give them the leverage they need to negotiate commission rates and ticketing policies with U.S. airlines.

42.   The two companies developed flights between these hubs through the antitrust immunity.

43.   The U.S. has said generally that a fair allocation of Heathrow takeoff and landing slots for U.S. carriers is a prerequisite for antitrust immunity for the alliance.

44.   They have also received antitrust immunity.

45.   U.S. officials have made it absolutely clear that the U.S. will not grant antitrust immunity to the combination absent an open skies agreement.

46.   While these companies wanted to eliminate the antitrust immunity, they compromised with the shipping lines to get the bill passed.

47.   Without antitrust immunity, the four have not been legally permitted to even discuss that possibility.

48.   American had sought antitrust immunity to form a marketing alliance with British Airways.

49.   American had sought antitrust immunity to seek a marketing alliance with British Airways.

50.   Both carriers are members of the Oneworld alliance of airlines, and they said Thursday that antitrust immunity would let them increase their ties.