United Nations Secretary-General Antonio Guterres on Tuesday voiced strong opposition to a newly proposed Israeli mechanism for managing humanitarian aid into the Gaza Strip, claiming the plan risks severely restricting essential relief supplies. “This proposal risks further controlling and callously limiting aid down to the last calorie and grain of flour,” Guterres said during a press briefing, as quoted by Reuters. “Let me be clear: We will not participate in any arrangement that does not fully respect the humanitarian principles: humanity, impartiality, independence and neutrality.” Humanitarian deliveries to Gaza have been suspended since March 2. Israel has stated it will...