The controversial process of editing the DNA in human embryos.
20 Years of Phoenix ZooLights
Hanging Holiday Lights is a tradition for many people. Most start that process about this time of year. But what if you have three and a half MILLION lights to string?
This is the 20th year the Phoenix Zoo has staged its Zoo Lights holiday show & officially opens today to the public.KJZZ's Al Macias bring us this audio postcard about the man repsonsible for making sure all those lights work.