How much does it cost to dispose of radioactive waste?

in the U.S it is around $96bn and in England it is about £56bn. you have to bury it deep in the ground because it is not bio-degradable and remains active for thousands of years. there is still the off chance that in the ground it can reacts with something and cause an explosion or release of harmful chemicals that come upwards so that crops and harvests contain those chemicals and then insects eat them and then other animals eat that insect and then we eat that animal and so on...