Photograph taken on June 27th, 2015, at the site of the shooting attack on the beach in front of the Riu Imperial Marhaba Hotel in Port el Kantaoui, on the outskirts of Sousse. Photograph: Kenzo Tribouillard/AFP/Getty Images

“Cowardly” Tunisian security forces let down victims of a mass shooting at a beach hotel in 2015, making “deliberate and unjustifiable” delays in thei(...)