1.   Of course in human terms, American flexibility has its downside.

2.   The agreement gives American flexibility to buy the jets at a set price when they are needed, rather than a more rigid delivery schedule.

3.   What form new American flexibility might take, should it develop, was unclear.

4.   European negotiators welcomed a suggestion of American flexibility on how deeply U.S. fuel emissions would be cut under a new global warming agreement.

5.   European negotiators welcomed a suggestion of American flexibility Thursday on how deeply U.S. fuel emissions would be cut under a new global warming agreement.

6.   U.S. Vice President Al Gore, faced with European demands for more, offered new American flexibility Monday on cutting back gas emissions tied to global warming.