Actually the Bureau of Engraving and Printing will replace damaged or destroyed US currency if they can determine to their satisfaction how much has been destro

Actually the Bureau of Engraving and Printing will replace damaged or destroyed US currency if they can determine to their satisfaction how much has been destroyed. They replace over $30 million of currency yearly. The most common causes of mutilation are are fire, water, chemicals, explosives; animal, insect or rodent damage; and petrification or deterioration by burying. See http://moneyfactory.gov/uscurrency/damagedcurrency.html http://moneyfactory.gov/uscurrency/damagedcurrency.html There's also an article with some interesting stories: http://usatoday30.usatoday.com/news/nation/2001/06/2001-06-03-money.htm http://usatoday30.usatoday.com/news/nation/2001/06/2001-06-0... [I'm not intending this as an argument about Bitcoin, but as something people might find interesting.]