PBA211H: The Principle of Double Effect

self-defence

mother's life at risk

http://www.unmaskingchoice.ca/training/classroom/circumstances/danger

http://www.zenit.org/en/articles/us-bishops-clarify-abortion-for-mother-s-health

Can we ever “kill [an innocent person] to save?” What if there are no good moral options? (e.g. Margaret McBridge / modified Chilean miner's scenario)