1.   The big beasts of medical ethics have been locking horns, the rationalists against the religious as usual.

2.   Challenges are nothing new for McGhee, who took the task of locking horns with Musketeers All-American forward David West personally.

3.   Now the agency and its founder are locking horns.

4.   The two divers are locking horns in federal court over the rights to salvage a wreck that may or may not contain gold.

5.   Confident that his Iowa campaign has gained steam, Al Gore is locking horns with presidential rival Bill Bradley over farm policy and campaign finance reform.

6.   The French arguments over expansion and restructuring troubled the summit, following a tradition of France locking horns with the Americans.

7.   The Democratic administration has been locking horns with the Republicans over spending priorities and the two have not agreed to a permanent budget.