41.   Swiss prosecutors have said their Russian counterparts were sluggish in pursuing corruption investigations against highly placed officials, while energetically prosecuting Kremlin opponents.

42.   Swiss prosecutors later confirmed the details of the arrest.

43.   Swiss prosecutors still have to decide whether the evidence is serious enough to launch a formal investigation.

44.   Swiss prosecutors still have to decide whether to launch a formal investigation.

45.   Swiss federal prosecutors announced last month that they were probing charges of espionage and illegal export of materials and technology to the program.

46.   Swiss prosecutors have issued an arrest warrant for Borodin, charging him of money-laundering through Swiss banks.

47.   Swiss prosecutors have kept his case open, and he has been summoned for questioning in Geneva in mid-May.

48.   Swiss prosecutors said several bank accounts in Geneva and Zurich containing millions of dollars have been frozen as part of their investigation and several house searches were made.

49.   Swiss prosecutors say their Russian counterparts were sluggish in pursuing corruption investigations against political insiders, while energetically prosecuting Kremlin opponents.

50.   Swiss prosecutors allege he is head of the Solntsevskaya organization based in Moscow.