1.   And both sides have warned that key U.S. and Japanese cargo routes for aircraft might be blocked.

2.   Another yet-to-be-decided U.S. carrier will be permitted to fly six cargo routes a week to Japan -- one of which includes a stopover.

3.   All are seeking new cargo routes.

4.   Five major disputed areas -- air cargo routes, insurance, intellectual property, photo film and semiconductors -- are outlined below.

5.   Five major disputes areas -- over air cargo routes, insurance, intellectual property, photographic film, and semiconductors -- are outlined below.

6.   In addition to film, U.S.-Japan tensions are building in a dispute over air cargo routes.

7.   Japan is seeking further talks with Washington to ward off proposed sanctions in a dispute over air cargo carrier routes, a government official said.

8.   Officials from both sides have said negotiations on the passenger flight issue may begin after formally signing an agreement expanding air cargo routes.

9.   Officials from both sides had said they may begin negotiations on the passenger flight issue after formally signing an agreement expanding air cargo routes.

10.   Rows over air cargo routes and sales of U.S.-made photographic film are heating up.