Former oil tycoon Mikhail Khodorkovsky arrives in Switzerland . Russian dissident travels to visit his family . The U.S. government says it is considering sanctions against Russia over the Ukraine crisis and has warned that if Moscow does not change course, Washington will impose them.
Former oil tycoon Mikhail Khodorkovsky arrives in Switzerland . Russian dissident travels to visit his family . Khodorkovsky was jailed for 10 years in Russian prison .