Because, it was a huge war, with many deaths. It was a Major part of WWII. the invasion of Normandy France. There are books upon books that I could write to answer that question, but alas, I lack the proper time.
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Nothing, but some people say that he was in charge of 9/11
A multi-party system is the most common system in the world today.
America's 2-party system is not the common model most other democratic nations follow, with three or more political parties. Some nations have dozens parties. Canada's parliamentary system has six major political parties. Mexico has seven parties active in its politics. One American political commentator has written: "The divisive and competitive politics of the Democrats and Republicans have many Americans wondering whether we’d be better off with a multi-party system" (Rachel Eckhardt in HuffPost, 10/26/2015).
They used electronic surveillance meaning they were able to listen to phone calls, reading emails and text messages etc.