Short answers, pulled from the story.
The Marshall Plan, formally called the European Recovery Program, was devised by U.S. Secretary of State George Marshall in 1947. From 1948 to 1952, the United States government allocated $13 billion for the reconstruction of affected countries in Western Europe.
Approximately 12 million people were expelled from Germany under the Potsdam agreements, including seven million from Germany proper and three million from the Sudetenland.
Operation Paperclip was a U.S. program that began in 1945 to import German scientists and technicians. The United States brought in 1,600 German scientists and technicians, including researchers who had worked on the V-2 rocket at Peenemünde, with the intellectual value of acquired patents and processes estimated at around $10 billion.
The United Nations officially came into existence on the 24th of October 1945, replacing the League of Nations, which had formally dissolved on the 20th of April 1946.
By the 65th anniversary of the bombings, total casualties from the initial attacks and later deaths had reached about 270,000 in Hiroshima and 150,000 in Nagasaki. About 230,000 hibakusha were still alive at that point, with approximately 2,200 suffering from radiation-caused illnesses.
At the direction of the UK, U.S., and Russia, chemical weapons were loaded onto ships and dumped into the sea at the end of World War II. It is estimated that 1 million metric tons of chemical weapons remain on the ocean floor, where they are rusting and pose a risk of leaks. Sulfur mustard exposure has been reported in parts of coastal Italy, and sulfur mustard bombs have been found as far as Delaware.