Ed Yong, 2009.
Propranolol: drug tested with people; taken before recalling memories of phobias and reduced the amount of fear associated with those memories.
CREB: identifies memories containing fearful experiences.
Memories are stored as a plurailty of activated neurons not in a single one.
Jin-Hee Han using a compound to expose CREB-laced memories and a diptheria strain to attack the "fearful" memories.