It wasn't a reassuring moment. Speaking at the World Economic Forum in Davos, Switzerland on Wednesday, Shinzo Abe, the Japanese prime minister, compared recent tensions between China and Japan to the rivalry between the British and German empires at the start of the 20th century.

Brazil is known worldwide for its soccer players and supermodels, its lively parties and an appreciation for living life passionately. Another well-known characteristic of the country is its high inequality spurred on by ineffective income distribution practices and clientelistic political systems.

In 2010, I sat across the table from Assistant US Trade Representative Barbara Weisel, who was responsible for negotiating the Trans-Pacific Partnership (TPP), the mega-regional free-trade treaty among Vietnam, Malaysia, and ten other Pacific Rim countries that President Barack Obama’s administration wants to conclude in the coming weeks.

Are China’s leaders destined to ask each other, “Who lost Hong Kong?” It’s a question worth pondering after a holiday week that offered a stark reminder of just how restless -- if not unhappy -- a sizable percentage of the former colony’s residents are under Chinese rule, 17 years after the end of British sovereignty. Of course, nobody seriously entertains the idea of a political schism between Hong Kong and China.

For the second year in a row, Colombia has topped the list as the world’s happiest country, according to a survey released Thursday by WIN-Gallup. The survey known as the 2014 Barometer of Happiness and Hope reported that of the 1,012 Colombians polled, 86% self-reported as “happy,” while only 2% reported themselves as “unhappy.” This represents a rise of 9% from 2012 when 77% of respondents rated themselves as “happy.”

Have I been wrong all along? Some critics suggest my newspaper columns since 1995 on the politics and economics of the Mainland have been — oh — overly sympathetic toward China. I just don’t know. But no one can afford to be complacent. And so the worry popped up again, for several reasons.

The time seemed right to most observers, the place not entirely thought out. Why would the sitting, though troubled, prime minister of a country visit another sitting, but less troubled, premier of another country at a city other than the capital?