Facebook Parental Feature: Comment-Scraping

Our teens have Facebook pages. A requirement was that they let us be their friends. Of course I refrain from actually posting anything on their pages, but I check them every now and then. Here is the Facebook feature/add-in I would like. I would like a robot that scrapes their comments page every hour, aggregates it and emails it to me each day. I would particularly like it to highlight any comments that had been deleted!