COX’S BAZAR, Bangladesh — Rohingya refugees in crammed Bangladeshi camps say they are worried about a U.S. decision to cut food rations by half beginning next month, while a refugee official says the reduction will impact the nutrition of more than 1 million refugees and create “social and mental pressure.”President Donald Trump abruptly stopped most foreign aid and dismantled the U.S. Agency for International Development, which has significantly hampered the global humanitarian sector. Trump’s Jan. 20 executive order froze the funding for a 90-day review.The World Food Program, the main U.N. food agency, recently announced that cuts to food rations will take effect from April 1 in Cox’s Bazar, Bangladesh, where dozens of camps are inhabited by Rohingya refugees.More than 700,000 Muslim Rohingya fled to Bangladesh from Myanmar starting in late August 2017 when Myanmar’s milita...