> But the recoded E. coli will be unable to grow unless fed one of those artificial amino acids, so it shouldn’t spread in the wild. “Biocontainment is our numb

> But the recoded E. coli will be unable to grow unless fed one of those artificial amino acids, so it shouldn’t spread in the wild. “Biocontainment is our number one priority,” says Church. Clever, but still sounds a bit dangerous. What about mutations?