Several readers including tyghe!! sent in a Popular Mechanics piece analyzing the Augustine Commission's recommendations and NASA itself in terms of a persistent bias towards risk aversion, and arguing that such a bias is fundamentally incompatible with the mission of opening a new frontier. "Rand Simberg, a former aerospace engineer finds the report a little too innocuous. In this analysis, Simberg asks, what happens when we take the risk out of space travel? ... Aerospace pioneer Burt Rutan said a few years ago that if we're not killing people, we're not pushing hard enough. That might sound harsh to people outside the aerospace community but, as Rutan knows, test pilots and astronauts are a breed of people that willingly accepts certain risk in order to be part of great endeavors. They're volunteers and they know what they're getting into."