TOKYO -- Four years ago, China's People's Daily published an unusual commentary on its front page.
We need to prevent both 'black swans' and 'gray rhinos,' it said.
As China grapples with debt, another crisis brews silently next door

A "gray rhino," a term coined by American writer Michele Wucker, refers to a highly probably threat that nevertheless ends up ignored. (Source photos by Reuters)
TOKYO -- Four years ago, China's People's Daily published an unusual commentary on its front page.
We need to prevent both 'black swans' and 'gray rhinos,' it said.