Rich Americans who want a backup plan are getting second passports. These are the countries they're choosing.

The view from the hillside on Corfu Island in Greece.David C Tomlinson/Getty

• The mega-rich in America are worried about social and political instability.
• As a backup plan, they've begun acquiring second passports.

The United States is experiencing a touch of sociopolitical instability — perhaps karma for the nation's history of interference in other countries' politics? — that is putting its people on edge.

Not everyone has the means to prepare an exit plan, but the wealthy Americans who do, are. They've started acquiring second passports to other countries through so-called golden visa programs, which allow wannabe residents to establish residency through investment.

Here are some of the top countries they're eyeing if they need to make a break for it.