of little consequence to a country like the United States, yet it could have a huge impact on how Japan interacts with the outside world in the future, even affecting how it supports international obligations and alliances. "Japan will be more likely to prioritize healthcare than international security," Brad Glosserman and Tomoko Tsunada wrote in Foreign Policy Magazine. "Older societies are typically more risk-averse, and Japanese -- 'reluctant realists' at the best of times -- will be increasingly unwilling to put their most precious resource, their young, in harm's way," they said. Japan's population isn't falling faster because people there are living longer. Japan has a life expectancy of about 86 years for women and 79 for men at present, and the ages are expected to rise in the coming decades. More than 20 percent of Japan's people are aged 65 or over, one of the highest proportions of elderly in the world. Japan's graying population is a real problem for the country's leaders as they need to ensure the dwindling numbers of workers can pay for all the care needed for the growing army of pensioners. And the elderly have increasingly more economic clout with Japanese companies targeting them increasingly. One interesting figure has come out of the diaper manufacturer Unicharm. It announced last week for the first time ever sales of its adult diapers were larger than those for babies. But Japan's elderly may have increased economic power now but they know without more children the country is