GATTACA is a dystopian warning about this exact scenario.  Like any powerful new technology, it is neither good nor bad, it simply depends on how it is used.  Curing diseases such as fragile X syndrome, cystic fibrosis or Tay-Sachs syndrome as well as creating a novel super-flu that kills millions are both easily within reach now.

CRISPR allows editing to nearly any genome accurately, easily and cheaply.  Like nuclear fission, once discovered, there is no putting the genie back in the bottle, ever.

The nation and indeed the entire world needs to figure out a strategy to deal with the repercussions, and quickly.  What that should look like, I truly have no clue.