This is the third time this year the U.S. government's been partially shut down.
Most Americans won't even notice, though.
For instance, flights will still take off and land as normal, government benefits will be paid -- agents will still be at U.S. border crossings.
Other government functions deemed "essential" will go on too, like the postal service, law enforcement and, of course, defense.
But the shutdown will have some effects.
Certain programs, like subsidized loans for businesses... and federally-insured mortgages will be put on hold.
Some national parks might close, and others might have only limited services.
The governor of Arizona, for one, has said the Grand Canyon will stay open,... and the Statue of Liberty, in New York, will be open as well.
