* Border agents defy court order, congressmen and lawyers say * Opinion: Muslim ban has brought the US close to constitutional crisis * Live updates from the US and around the world 5.23pm GMT _Helena Smith, our correspondent in Greece, the county long on the frontline of the refugee crisis, reports on Syrians being the biggest victims of Trump’s ban on refugees._ 5.20pm GMT Trump just signed another new executive order, this one on the theme of cutting regulation. The purpose of the order states that: for every one new regulation issued, at least two prior regulations be identified for elimination, and that the cost of planned regulations be prudently managed and controlled through a budgeting process. Continue reading...