I really think we should use the guillotine in public squares for capital punishment or at least broadcast it on TV. It is a humane way of killing people and if as a society we decide to kill people, we should have to look at the consequences of our decision. If you can't do that, you shouldn't be in favor of the death penalty.
This is my opinion as well, as someone who opposes the death penalty. It is not a medical procedure, which so many supporters of capital punishment want to turn it in to. It is state-sanctioned homicide, the otherwise unnecessary killing of a human being. If you cannot bear to even watch, let alone "flip the switch" so to speak, there is at least a considerable level of cognitive dissonance, perhaps even outright hypocrisy. I am definitely of the mindset that all executions should be televised for the entire public. Everyone should be able to see what the state is doing in their name and make judgements thereupon.