Secure delete option in File Manager ?

By altering permissions in Terminal it is possible to unlock the option to delete files using File Manager. That does not provide secure delete though. The sandbox protocols in Ubuntu Touch will prevent any developer creating a stand-alone app for secure delete. In principle though, the delete funtion in File Manager could be changed to a secure delete function [with a suitable warning]; alternatively, two forms of delete function could be listed - one secure, one not.

Ubuntu should lead on security, rather than lagging behind other operating systems.