How a tobacco farm in Kent could provide a life-saving drug for millions

From the page:

-- In the perfectly controlled atmosphere of a brick-proof, hermetically sealed greenhouse deep in the Kent countryside, a fresh crop of tobacco plants is beginning to flourish.

There is nothing unusual about the plants' appearance, but they are nonetheless extraordinary. A genetic tweak ensures that every cell of every plant churns out tiny quantities of an experimental drug. When harvested, they could bring cheap medicine to millions. --