The Trump administration is taking the unusual step of deploying a Navy warship off the waters of the U.S. as part of its broader crackdown on security and migration along the Mexico border. The destroyer USS Gravely departed for the deployment on March 15 and will have a Coast Guard law enforcement detachment aboard that will better enable it to conduct missions such as ship seizures and drug interdictions, according to a statement released by U.S. Northern Command over the weekend. However,