UN official languages, www.un.org. Retrieved 11 July 2014.

outline
Topic:America isn’t still a superpower today
1.America’s many deed are come under supervise by the United Nations
a.America must submit application to U.N. Security Council if America want to take military action.
2. American’s gross domestic product(GDP) hasn’t ranked in first place in global today.
a.refer to Russia,china’s GDP
3. The financial crisis made America lead to recession in 2008
a.Many bank had been gone bankrupt or had been taken from government.
b.Financial crisis was increased unemployment rate.
c.America lend money which is very big to other country

http://www.sovereignman.com/trends/why-america-is-in-decline-14502/

http://www.economist.com/news/briefing/21607810-new-figures-show-speed-which-americas-economy-can-grow-without-stoking-inflation-has