Villa 31 in Buenos Aires has been one of the most vulnerable slums during the Covid-19 crisis. Activist Ramona Medina from the grassroots organization La Garganta Poderosa, who had denounced the lack of water in Villa 31 in early May, died last week. Roger Waters, who has a long relationship both with Villa 31 and RLS partner La Garganta Poderosa, dedicates his moving new version of “We Shall Overcome” to Ramona.