US is failing to address ‘persistent and lethal threat’ of domestic terrorism, report finds

A man mourns at a memorial at the scene of a shooting at a Tops supermarket in Buffalo, New York, in May. Photograph: Lindsay Dedario/Reuters

The FBI and the US Department of Homeland Security (DHS) are failing to properly address the threat of domestic terrorism, predominantly from white supremacist and anti-government extremists, according to a Senate committee report released on Monday.

The Senate homeland security and governmental affairs committee spent three years investigating domestic terrorism and the federal response.