With ALL of the technology available to a US Navy destroyer, which would never be traveling alone and always in a group (most likely surrounding a nuclear aircraft carrier), how could a ship NOT see the merchant ship on the radar and have plenty of time to change course or take some other evasive action that would avoid such a collision? Seems like someone was (literally?) asleep at the wheel. I sure hope those crew members are found and are okay. This is an unnecessary mistake, and loss of life of some of our finest would be tremendous tragedy.