There are people who worry about the Ozone layer, Acid rain, Global Warming/Cooling/Climate Change- but genetic tinkering actually worries me.
Not just toying around with cells, but there is also the Crispir Device. If you're not familiar with it, it is a process by which genomes may be simply edited. It is the stuff of horror movies. You can put this equipment in your garage, in fact here is a line from the business home page I just linked to--
"Our easy-to-use, optimized and validated solutions span the entire cell engineering workflow, making genome editing accessible to anyone at any level. We offer our state of the art online CRISPR search and design tool along with CRISPR-Cas9 in four formats; Cas9 protein, Cas9 mRNA, all-in-one expression vector, and CRISPR Libraries paired with the optimal cell culture reagents, delivery method, and analysis tools based on your application and cell type."
It's no a matter of this stuff getting into the wrong hands, it's all over the world now. Who knows what has already been made. Scary, scary stuff.