Over time, some travel warnings start to lose their impact.

Such a travel warning must be made after the effective date.

Western governments have issued a number of travel warnings recently.

Even the Internet is jammed with the latest travel warnings.

A series of travel warnings were issued by a number of countries.

"Even in a country where there isn't a travel warning, there are a lot of health and safety issues," he said.

We all know the implications of such harsh travel warnings.

The American government lifted its travel warnings in 2008.

The travel warning was last updated January 9, 2007.

The United States has issued travel warnings south of the border.