New bleeding edge technology. It's bound to have mistakes and unintended consequences until they're hammered out. What boggles the mind is that people still need to be reminded of this.
I can only imagine a fraction of the potential benefits for mankind. Stephen Hsu was interviewed on the matter.
Yes but this also causes fears, since the public has no idea how this works. Like the hadron collider making mini black holes, or stem cell research. We aren't going to use CRISPR on you if it can cause cancer or even worse. At least not CRISPR in its current form.