A top UN official said Friday that hard-hit northern Gaza was now in “full-blown famine” after more than six months of war on Gaza and severe Israeli restrictions on food deliveries to the Palestinian territory. Cindy McCain, the American director of the UN World Food Program, became the most prominent international official so far to declare that trapped civilians in the most cut-off part of Gaza had gone over the brink of famine. “It’s horror,” McCain told NBC’s “Meet the Press” in an interview to air Sunday. “There is famine – full-blown famine – in the north, and it’s moving its way south….