 Most of the proposed disposal methods are designed to put the waste in a place so isolated from the environment that (it is hoped) immediate stewardship cessation would be safe and appropriate.However, many people are more comfortable with systems where the waste is still accessible, so that if there is an unforeseen problem with the disposal method, the waste can still be accessed to rectify the problem.These systems will still require some level of stewardship, but the system designer must consider that this may not be available for the hundreds of years required.