It's a documentary from 2011 but it will remain a topical issue for decades to come. And spent fuel for many more centuries... Extract from the video :
Michio Kaku, Physicist : If you’ve been exposed to Cesium 137 ‘cause you’re an atomic worker, even after you’re long dead and buried, your gravesite will be radioactive. Your great grandkids can come with Geiger counters ans see their great granddaddy still has radiation at his gravesite.
Liz hayes, Journalist : Are you serious ?
Michio Kaku, Physicist : I’m serious.