Chernobyl tour companies recently told CNN that Ukraine will now allow tourists to visit the reactor's control room, where decisions were made that ultimately contributed to the disaster.

engineer Oleksiy Breus entered the control room of the No. 4 reactor at the Chernobyl nuclear power plant in Ukraine. A member of staff at the plant from 1982, he became a witness to the immediate ...

WATCH: The BBC's Yogita Limaye at Chernobyl nuclear power plant, now back under Ukraine's control The former nuclear power plant at Chernobyl in northern Ukraine was taken over by Russian forces ...