The purpose of the federal government is to regulate interstate commerce, and keep our citizens from harming one another.

How did Cuba intend to encourage tourism while trying to keep its citizens away from the visitors?

The Russian Government is also struggling to keep its citizens supplied with heat and power.

And towns like to keep their longtime citizens around.

Part of the reason for this was that in the past no government had the power to keep its citizens under constant surveillance.

Officials also realize that the country's neighbors need investment, too, to keep their citizens at home.

San Placido is charged with protecting the town and keeping its citizens safe from harm.

This regime kept its citizens like they were in a large prison.

The German leaders have again today latched on to this illusion to keep their citizens in the dark while definitive decisions are taken.

Afghan soldiers, sometimes with bayonets mounted, keep their fellow citizens in line.