A Marriage Made in Heaven (Or at Least in Orbit)?

In the International News section, The New York Times reports that missile defense is getting popular with worried Japanese voters:

In a poll conducted a week ago for the liberal daily Asahi Shimbun, 95 percent of 2,068 Japanese respondents surveyed said they were “concerned” about North Korea’s nuclear program.

On Friday, Yomiuri Shimbun, a conservative daily, ran a headline that said, “U.S. to Press Japan to Build Missile Shield.” But in a briefing for the news media, the reported instrument of pressure, Douglas J. Feith, the under secretary of defense for policy, said there was no need for a heavy sales job.

“You don’t have to pressure Japan for Japanese to realize that Japan is facing a serious threat of missile attack,” he said, referring to North Korean capabilities.

Now, as I understand it, any space-based defense will have to rely heavily on computing power and power-source miniaturization. We have Intel. They have Sony. Do the math.