[goodcanadian]

Find out what works. Find out what doesn't work and why it doesn't work even though it seems to work elsewhere.

Absolutely. The trouble is that there is no consensus on what "working" means. Is it minimising short term deaths? Well, then it is easy to see what worked and what didn't, but is that the correct metric? Perhaps, it is minimising impact on society? Well, it is less easy to see, but there is enough information to make some reasoned statements. However, you will probably come up with a different answer than you had for the previous question. And are we talking about short term or long term impact? Perhaps the goal is to minimise long term deaths and suffering? I don't think that we can begin to claim to have enough information to make any definite statements on that (though, of course, I have my opinions).