Simply put, their actions have caused an increase in the amount of security in our country. The technology for public safety also has been greatly developed in the post cold war era. In terms of policies I would say there are more limitations/restrictions to things you can bring on a plane and things like that. Hope this helps...
Rembrandt van Rijn painted the Night Watch.
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Prohibition created a vast illegal market for the production, trafficking and sale of alcohol. In turn, the economy took a major hit, thanks to lost tax revenue and legal jobs. ... The start of the Great Depression (1929-1939) caused a huge change in American opinion about Prohibition
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