Security is exceedingly tight and will only grow more so by Tuesday when major bridges and roads leading to the central part of the city will be blocked to all but official vehicles.

• 目前华盛顿安全戒备森严，到周二还将更严，届时，通往市中心地带的主要桥梁和街道将被封锁，除官方车辆外，所有车辆都不得通行。