The last two of the three incidences were due to pressure explosions
Molten Salt reactors do not use pressure, & generate a fraction of the waste
The Chinese have a hundred scientists researching this
The US had a test reactor running for 20 years like a clock in Tennessee, but went with the Uranium pressure model because it allowed them to generate ......weapons grade plutonium
Greenpeace is dead set against anything nuclear & they appear to be running the show (IPCC) so I guess it is back to the dark ages