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Problem-solving competitions for mathematically talented sec ondary school students have burgeoned in recent years. The number of countries taking part in the International Mathematical Olympiad (IMO) has increased dramatically. In the United States, potential IMO team members are identified through the USA Mathematical Olympiad (USAMO), and most other participating countries use a similar selection procedure. Thus the number of such competitions has grown, and this growth has been accompanied by increased public interest in the accomplishments of mathematically talented young people. There...

What if two of the world's greatest nations--nations that were allies during both world wars and have never warred against each other--had found common ground after the 9/11 attacks and moved forward together to end global terrorism?

Operation Elbe explores these possibilities when nuclear physicist Mikhail Petrov, a Soviet defector to the U.S., loses his American wife in the 9/11 attacks and is enlisted to help joint American and Russian forces prevent -suitcase bomb- attacks against both nations.

From the vital capital of America to the frozen landscapes of Russia to...