Is Russia preparing to use a WMD (Weapon of mass destruction) in Kherson?

"The use of unconventional means is undoubtedly on the agenda." The use of a tactical nuclear weapon is unlikely at this stage, but Russia may be preparing to use a chemical weapon, says military logistics expert, Major General Tim Cross, speaking to Dr. Mike Martin, research fellow at the Department of War Studies at KCL and host, John Pienaar.