1911's have to be the safest gun to carry with 3 real safeties! 1. the trigger- don't pull it and it won't go off. 2. grip safety- even if something snags the trigger, the grip safety also has to be depressed. 3. manual safety- the safety lever has to be manually disengaged.
If you need more safeties than that, you're doing it wrong.
If you need more safeties than that, you're doing it wrong.