I have not heard of this before, but i think it's a sort of silly idea - no offense to Dr. Pepi. Until you crack your egg open, the bloom (if we're talking about fresh eggs, and not store bought) is keeping the germs from entering the actual egg. If you simply wash it right before you crack it open, i think you're doing more than enough to keep you and your family more than safe.
The theory i've read, by the way, about what temperature of water to use to wash your eggs - is that water colder than the egg will cause it to contract and thus draw germs in with it; using water warmer than the egg will cause the egg to expand, pushing germs out, away from the egg. I'm not sure if it matters that much, to be honest, but that's the theory.