"I believe that politicians, who have long been dependent on MOF officials in their decision-making, will use the current heat to boost their power, " says Kobayashi Yoshiaki, a political scientist at Keio University.

CNN: WHAT NEXT JAPAN?

But another explanation could be changes in lifestyle factors which increase the risk of hormone-dependent tumours, such as women having babies at an older age, obesity after menopause and use of hormone replacement therapy.

BBC: Breast cancer biology 'changing'

We should not be thrown any red-herrings that we need not press-on toward a future that is far less dependent on oil, and indeed a better planned use of energy in all its forms.

FORBES: Deep Oil From Diamonds? Maybe, Says A New Report

Mr. Obama's emphasis on pursuing new pacts comes as he makes his way through an export-dependent region that has grown nervous about his trade policy, and skeptical about his willingness to use political capital at home to support free trade.

WSJ: Obama Carries a Message to Asia