<prompt> Bhala ukuqhubeka kwalesi sigaba - Ngekhulu lama-21, ama-agent aseNovichok agxila emphakathini ngemuva kokuthi asetshenziselwe ukufaka ubuthi kubaphikisi bakahulumeni waseRussia, kubandakanya ama-Skripal nabanye ababili e-Amesbury, UK 2018 no-Alexei Navalny  <response>: 2020, kodwa izingozi zomphakathi zalolu ketshezi bezilokhu zaziwa kusukela okungenani ngo-1995. 