Gene therapy for cancer nears FDA approval

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Other than the 3-parent IVF, here's a new example....
Its benefits notwithstanding, note the downsides of side-effects and the cost factor....

For additional stuff on the problems, click:
http://www.straitstimes.com/world/united-states/scientists-call-for-caution-in-gene-editing

Qn: Should research on genetic modification be allowed to continue even though there are many ethical concerns? (SRJC Mid Yr 2017)