Exhausted and covered in dust, a truck full of Sudanese refugees arrive on the outskirts of Oure Cassoni refugee camp in eastern Chad, Nov. 30, 2025. (Ivor Prickett/The New York Times) By NICHOLAS KRISTOF This is the time of year when many of us hail “peace on earth” and earnestly repeat lines about “goodwill to all.” So maybe it’s also a moment to hold ourselves accountable for our collective failures — and, even more important, to try to do better. It’s not just that ill will and war...