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Since the Stoneman Douglas High School shooting, which led to the deaths of 17 schoolchildren and staff, the survivors have directed their political fire at the NRA. They intensified the political argument over the question – when and by how much should America tighten its gun laws?
The NRA, or National Rifle Association, is as ever a key player in this debate. America’s oldest civil rights organisation, it lobbies for the rights of US citizens to bear arms, in keeping, it says, with the Second Amendment of the US Constitution. But is their influence - and their finances - on the wane?

Producer: Laurence Knight

PHOTO: Student holds a sign during anti-NRA protest/Getty Images