Changes

In 1939 research done by several leading scientists including [[Enrico Fermi]] regarding chain reactions of nuclear fission prompted [[Leo Szilard]] to persuade Einstein to write a letter to President <ref>[[Roosevelt]] Einstein, Albert (August 2, 1939). [http://hypertextbook.com/eworld/einstein.shtml "Letter to F. D. Roosevelt, President of the United States"].  Hypertextbook/E-World.  Retrieved on January 25, 2015. </ref>, to warn the President about the possibility of nuclear weapons and that Nazi [[Germany]] had already taken an interest in this technology.

In 1939 research done by several leading scientists including [[Enrico Fermi]] regarding chain reactions of nuclear fission prompted [[Leo Szilard]] to persuade Einstein to write a letter to President <ref>[[Roosevelt]] Einstein, Albert (August 2, 1939). [http://hypertextbook.com/eworld/einstein.shtml "Letter to F. D. Roosevelt, President of the United States"].  Hypertextbook/E-World.  Retrieved on January 25, 2015. </ref>, to warn the President about the possibility of nuclear weapons and that Nazi [[Germany]] had already taken an interest in this technology.

Einstein himself had never been involved in the [[Manhattan project]]. He was considered a security risk, as he was a member, sponsor, or affiliated with thirty-four communist fronts between 1937 and 1954.<ref>http://foia.fbi.gov/foiaindex/einstein.htm</ref> Later he condemned the use of nuclear weapons.

Einstein himself had never been involved in the [[Manhattan project]]. He was considered a security risk, as he was a member, sponsor, or affiliated with thirty-four communist fronts between 1937 and 1954.<ref>[http://web.archive.org/web/20040810044240/http://foia.fbi.gov/foiaindex/einstein.htm "Albert Einstein"] (2004).  Federal Bureau of Investigation website.  Retrieved on January 25, 2015.</ref> Later he condemned the use of nuclear weapons.

==Controversy surrounding his death==

==Controversy surrounding his death==