In The Code Book: The Evolution of Secrecy from Mary, Queen of Scots, to Quantum Cryptography, due out soon from Doubleday, British author Simon Singh traces the evolution of the centuries-old battle between code writers and code breakers.

FORBES: I've got a secret

The new code's tortuous evolution means it is poorly drafted and in places ambiguous, says Roberto Smeraldi of Amigos da Terra, a Brazilian NGO.

ECONOMIST: Environmental law in Brazil: Compromise or deadlock? | The