There was no flaw in the process. The process required us to look at whether or not those blueprints should have been classified. A determination was made that they did not have to be classified, the contractors would not require access to classified information, or access to classified areas. A reliability check was done on the contractor. But the documents themselves were not classified, and there is no overall government provision for the handling of non-classified documents.
So as much as we may not have liked to have seen them thrown in the garbage, that was not outside the bounds of what they were allowed to do with those blueprints.