Scientists work on drug that can effect memory

I read today in the New York Times a article called "Brain Power, Brain Researchers Open Door To Editing Memory". I thought this article was really cool they are now testing the chemical on animals and feel that the drug will have the same effect on people they are hoping that this drug will help block those long term memorys that people suffer with due to tramatic events and help those people get over those memorys. I thought this was interesting due to the fact that some people hold onto those memorys and really have a hard time moving on in their lives, could you imagine having something that you have held on to for so many years, and let that memory effect your life and then all of a sudden it would be gone, im sure we all have things that we would like to forget but i thought this was very interesting, and i would love to see how this would really change a human being.