Apricot pits are great - I munch on them off and on myself.
A couple of points though - they do not CURE cancer. In some, or even many, instances they destroy the symptoms of cancer (i.e., the tumors and cancer cells). Merely destroying the existing cancer does not mean that the underlying cause has been addressed and that the cancer will not come back.
The only way I know to "cure" cancer is to rid the body of all cancer cells and prevent cancer from ever gaining a foothold again. I am not aware of any single substance that does that with the possible exception of oleander because it both kills cancer and boosts the immune system tremedously. However, even then I do not recommend just that one thing, but instead a comprehensive protocol that includes other cancer fighters and immune boosters, a healthy diet and lifestyle, removal of stress, etc.
I prefer the pits too, but laetrile works too often to say that the natural functions have all been destroyed.