Japan's missile defense plan

Japan and the United States are about to begin a joint project to develop sea-based missile technology to shoot down tiny enemy missiles as they descend at high speed from outer space.

The technical feasibility of the system is far from known. As a matter of fact, the United States has so far conducted "theater high altitude area defense" tests with land-to-air missiles five times and has failed each time. There is no plan as yet for a sixth test.

There are too many wild cards. How much money do we have to chip in before the TMD system is complete? Is the plan compatible with the Diet resolution on the peaceful use of space technology?

Moreover, the system will mean that Japan's security will be dependent on the United States' telecommunication system. The possibility exists that the new system will leave Japan in a position where it is even harder for it to have an independent say in security matters. This would not be desirable for promoting healthy relations with the United States.

The government should disclose more information about the TMD plan and promote deeper discussions about the wisdom of taking part in it. It is essential, in particular, to debate the merits of the TMD in the Diet.

-- The Asahi Shimbun, Tokyo