Already set to revolutionise the food industry, CRISPR gene editing technology is also being intensively investigated as a way to fix human DNA errors associated with diseases such as cystic fibrosis. Aside from the challenges of introducing new 'correct' DNA sequences into the right location, there are also concerns that the Cas9 enzyme that CRISPR uses to cleave DNA at a specific location could potentially introduce cuts where it’s not intended to, potentially causing cancer. Despite these concerns, researchers are focusing on the long-term knowing that true breakthroughs do not happen overnight.