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The ability to erase specific memories might soon be real. Dr. Todd Sacktor explained that this could eventually be used to treat disorders like PTSD.

But there are compelling ethical questions against it: should we alter the human mind? Could this technology be used on people against their will?

Listener Roz Galtz in Brooklyn, New York, gave us another reason: there are painful memories that are important to the person and to society as a whole.

Take a listen to this special interview with Roz as she explains the importance of not forgetting.