Perhaps the deterioration of the functioning of space navigation system GPS in 2010

The message of this report appeared in the Main Office United States. The main reason for the possible deterioration of space navigation system GPS in 2010 - late replacement satellite system reached the end of their service life, due to the excess of expenditure allocated budget for its support. GPS system is a U.S. Department of Defense to determine the coordinates of objects on the Earth's surface. The system has 31 satellites. Russian analog - the GLONASS system, the system consists of 20 satellites.