World

First of two parts

It's not often that a book comes out that rewrites a country's history. But that's the case with Tombstone, which was written by a retired Chinese reporter who spent 10 years secretly collecting official evidence about the country's devastating great famine. The famine, which began in the late 1950s, resulted in the deaths of millions of Chinese.

The Shanghai Propaganda Poster Art Center lies buried in an unmarked apartment building off the tree-lined streets of the city's former French Concession. There are no signs. You have to wend your way through apartment blocks, down a staircase and into a basement to discover one of Shanghai's most obscure and remarkable museums.

Singapore is taking local farming to the next level, literally, with the opening of its first commercial vertical farm.

Entrepreneur Jack Ng says he can produce five times as many vegetables as regular farming looking up instead of out. Half a ton of his Sky Greens bok choy and Chinese cabbages, grown inside 120 slender 30-foot towers, are already finding their way into Singapore's grocery stores.

Iran is stockpiling gold. That's the way David Cohen sees it. He's undersecretary of the Treasury, and the Treasury's point man for the banking sanctions the U.S. has imposed on Iran.

"Iran is attempting to hoard gold, both by acquiring it and by preventing the export of gold from Iran, in a somewhat desperate attempt to try and defend the value of its currency," Cohen says.

Malaria remains a huge problem in much of the world, but over the past decade the number of people getting sick and dying from the disease has gone down dramatically.

Health workers attribute much of this progress to the widespread use of artemisinin-based drugs. The problem now is that resistance to these drugs is starting to develop in Southeast Asia.