The Cuban government has summoned the US ambassador, Benjamin Ziff, to its foreign ministry, accusing Washington of stoking a protest which saw hundreds of people take to the streets in the island’s second city of Santiago de Cuba. The demonstration late on Sunday was a rare public show of disenchantment against Cuba’s communist government, and was apparently led by parents struggling to feed their children in the face of a worsening food crisis. The protesters reportedly chanted: “Without electricity and food, the people get hot.” Power cuts of up to 18 hours a day have meant that as the island...