BRITISH AIRWAYS passengers who suffered deep vein thrombosis have

taken their claim for compensation to Britain's highest court of

appeal. The case will ask for a ruling on whether the potentially

fatal blood clots linked to air travel can be considered accidents

under the Warsaw Convention.

A ruling for the claimants would lead to

action against 18 airlines, including BA, Qantas, Airtours

International Airways, Virgin Atlantic Airways and Continental

Airlines. Three years ago the airlines successfully argued DVT was not

caused by an ''unexpected or unusual event'' external to the passenger

- the definition of an accident under the 1929 convention.

http://www.ba.com

Most long haul flights - they warn you to exercise and get up from time to time. ANA - actually has demo(s) constantly.