Synthetic biology has generated extensive discussion about a wide range of risks and potential benefits, the intrinsic value of the technology, and the soci­etal distribution of its risks and benefits. However, be­fore these questions can be resolved, it is important to first ask a critical question: Is synthetic biology different enough from the technologies that came before it that it raises new questions or concerns? By putting synthetic biology into context, we gain a better understanding of the issues, both old (...) and new, that it raises. We can then consider practical governance questions, including ways to improve current practices. (shrink)