Jeffrey Sachs

We, being the Western world, wouldn't let Russia off the hook on debt. So there were demands on debt servicing in the early days until they ran out of reserves. There was no real aid program, just a fictional aid program.

If you have a lot of short-term debt, it means that all of that money can be demanded in a very short period of time. Technically, short-term debt means money that's coming due within a year. Typically, it means money that's coming due within 30 to 90 days.

In 1967, the world health community launched a global effort to eradicate smallpox. It took a coordinated, worldwide effort, required the commitment of every government, and cost $130 million dollars. By 1977, smallpox had disappeared.