Most polluted US nuclear weapons building site plans for influx of tourists

Hanford Nuclear Reservation, country's newest national park and home to the world's first full-sized nuclear reactor, prepares for expanded crowds

Thousands of people are expected next year to tour the Hanford Nuclear Reservation, home of the world's first full-sized nuclear reactor and the most polluted US nuclear weapons production site.

Related: Manhattan Project national park to preserve atomic bomb building sites