Geoff Brumfiel | NPR|Saudi Arabia is building a small civilian nuclear reactor, the nation's first. Nuclear power is an important part of its energy plans. Arms control experts ask if its intention is entirely peaceful.
President Trump is considering sending a new round of troops to the southern border. The military withdrew some service members from the border in December, after they laid miles of concertina wire – large steel coils with razor-sharp teeth.
As more states legalize recreational marijuana, there's at least one place where the rules haven't changed: the military. Active service members are strictly forbidden to use marijuana, whether it's recreational or medicinal.