Ok I was reading (again) in the FBI Oh my God thread that talks about how a hard drive could be read because of trails that it will leave and cant be totally over writen... I'm wanting to know if you can program Linux to make it that every time you delete something it'll overwrite it automatically and also in the temp area when it's finished using the files it terminates them by overwritting them 2 or 20 times... what ever you specify. In general I'm wondering if there is a way to program Linux to cover trails without effort of formatting free space every night... having programs delete and rewrite over files 10/20 times. Well I think it would definately be a worth while thing to put time into, I just want to know if it's possible.

(I hate when people say "anything's possible if you put your mind to it)... I know you could MAKE anything work but is it practicle?