happened. in the saudi's investigation, the united nations and u.s. state department calling for an investigation. this three star general is tasked for the moment with trying to determine what happened and what needs to be done from keeping it from happening again. how welcoming the saudi military will be to the u.s. military, if there is any criticism to be had of asaudi actions, they may not be welcoming of that. what the u.s. has been doing for years is backing the saudi-led coalition that operates in yemen, helping with refuelling aircraft. we don't know if that was involved here. and helping with targeting intelligence. we also do not know what the u.s. may or may not have done to help identify this target. >> that's important reporting, barbara, thank you very much for that. ahead for us, changing gears, they are bikers who back the president.