United States five-dollar bill $5 bill in circulation is 5.5 years before it is replaced due to wear. Approximately 6% of all paper currency produced by the U.S. Treasury's Bureau of Engraving and Printing in 2009 were $5 bills. The redesigned $5 bill was unveiled on September 20, 2007, and was issued on March 13, 2008 during a ceremony at President Lincoln's Cottage. New and enhanced security features make it easier to check the new $5 bill and more difficult for potential counterfeiters to reproduce. The redesigned $5 bill has: The five dollar bill lacks the Optically variable ink of higher denomination US bills.
US-A orbit would have rapidly decayed due to drag through the upper atmosphere. Further, the satellite would have been useless in the shadow of Earth. Hence the majority of the satellites carried type BES-5 nuclear reactors fuelled by uranium-235. Normally the nuclear reactor cores were ejected into high orbit (a so-called "disposal orbit") at the end of the mission, but there were several failure incidents, some of which resulted in radioactive material re-entering the Earth's atmosphere. The US-A programme was responsible for orbiting a total of 33 nuclear reactors, 31 of them BES-5 types with a capacity of providing about two