Border Security and Public Lands

Some Republicans want to give the Department of Homeland Security blanket authority to waive environmental laws on all public lands within 100 miles of any US border.

Right-wing Extremism in the US

How vulnerable is the US to a threat from the far right?

Boston terrorism arrest

Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.

A man has been charged with terrorism-related offenses that include plotting to kill people in an American shopping mall, the US Justice Department says. Tarek Mehanna, 27, was held in Sudbury, a suburb of Boston, Massachusetts, and charged with conspiracy to provide material support to terrorists. Matthew Bell reports. Download MP3

• BBC coverage
• US Justice Department