The story: Yemen’s Ansarullah movement—better known as the Houthis—has captured an Emirati-flagged ship bound for the Saudi port of Jizan. The Saudi-led coalition fighting the Houthis alleges that the Rwabee is a commercial vessel carrying medical equipment. Both the Gulf Cooperation Council (GCC) and the United States have condemned the seizure—framing it as a threat to maritime trade. 

The coverage: The Houthi-run Yemen Press Agency (YPA) published a video on Jan. 3 that claimed that the Rwabee was loaded with military equipment...