"دیوار آتش" سیاسی آلمان چیست و آیا می تواند از AfD جلوگیری کند؟

What is Germany's political 'firewall' and can it keep out the AfD?

Alternative for Germany, or AfD, has established itself as a significant political force in the 13 years since its founding, but it has never been part of any state or federal government. That’s a result of what is often called a “firewall” against cooperation with the anti-immigrant, far-right party. France 24's Philip Turle explains.