Stock photography, photos: US Dollars tied up Stock photos of US 100 Dollar bills tied in knots and string Photograph: © Terry Why Click for a larger image and more information Keywords associated with this stock photo: US Dollar, money, dollar, cash, safty, security, safe, protect, restrict, tied, finance, financial, economy, economic, saving, bill, buck, greenback, investment, pension, fund, tight, tighten, tied up