Rohingya refugees living in squalid camps in Bangladesh are in dire need of safer and more secure shelters, a senior United Nations official said on Wednesday in Dhaka. “People are living in shelters where they can’t properly lock their doors,” said Amy Pope, head of the International Organization for Migration (IOM). “This is very fundamental issue.” Pope, who arrived in Dhaka on Sunday on a five-day trip to Bangladesh, visited the sprawling refugee camps in the south-eastern district of Cox’s Bazar to get first-hand accounts of the plight of the Rohingya Muslims, who fled brutal persecution …