Cuban President Miguel Diaz-Canel said on Thursday his communist-run government has secured supply of key subsidized food rations as he moved to defuse tensions just two weeks after protesters took to the streets over widespread shortages. Diaz-Canel, who appeared on the mid-day TV newscast, said his government had undertaken an "enormous effort" to ensure the supply of food for the island`s population of 11 million. "The Cuban government will continue to be committed to guaranteeing the people