Some SS Retirement Age links

http://www.ssa.gov/history/reports/gspan5.html

http://www.ssa.gov/history/1983amend.html

http://www.ssa.gov/OP_Home/comp2/F098-021.html

http://www.policyalmanac.org/social_welfare/archive/crs_social_security_reform.shtml

http://www.watsonwyatt.com/us/pubs/insider/showarticle.asp?ArticleID=17217

http://books.google.com/books?id=3NbWOww4N-MC&lpg=PA475&ots=AemuEV1LxN&dq=studies%20done%20on%20increasing%20the%20retirement%20age%20in%201983&pg=PA475#v=onepage&q&f=false