SURFSIDE, Fla.–Six more bodies have been found in the shattered ruins of a Miami-area condominium tower over the past 24 hours, officials said on Wednesday, bringing the confirmed death toll to 18 nearly a week after the building collapsed. Nobody has been pulled alive from the mounds of pulverized concrete, splintered lumber and twisted metal since the early hours of the disaster in the oceanfront town of Surfside, Florida, adjacent to Miami Beach. Miami-Dade County Mayor Daniella Levine Cava told a news conference that 147 people remained missing and were feared trapped in the ruins of the Champlain Towers South condo. She said two of the 18 confirmed fatalities were children, aged 10 and 4. “The loss of children is too great to bear,” Levine Cava said. “Our community, our nation and the world all are mourning with these families who have lost loved ones.” Officials have said they still …