China is becoming a world leader in drug production, and 80 percent of drugs sold in the U.S. include ingredients from China, India and other countries — anything from aspirin to antibiotics.

Many of the ingredients in heparin, a blood thinner used by 10 million Americans each year, come from China. But between January 2007 and May 2008, at least 246 people died after receiving the drug.

Worldfocus editorial consultant Peter Eisner, the former deputy foreign editor of The Washington Post, reports on the deadly contamination of U.S. drugs.

Read contributor Knut Royce’s investigative report on heparin contamination: FDA failures contribute to spread of contaminated drugs.