The devil in me says let him go searching and realize its gone......or be even sassier and leave him a note where the porn stash was!!!
That is a very devastating and hurtful discovery, and i am very sorry for your pain. Porn and such was a contributing factor in my WH's A....so i can fully understand where you are coming from.
My WH and i have a boundary agreement....one of the deal breakers is porn...i find it, find out he has been viewing it, jerking off to it, or using it in any way shape or form...he is OUT, done, gone, adios, don't let the door hit you in the ass on the way out. Harsh...maybe...but necessary at this stage in our recovery.
But what more devastating is the lies. Your WH clearly still has boundary issues, and is still lying to you. True R can not begin to take place when the lies continue. Your WH needs to take a good hard look at himself, his behaviors and seriously get himself into IC.
Hugs to you