I disagree with that scientific reserch and development should not be restricted by govenment as the speaker says. In my view, the scientific deveelopment is neccessarily be constrainted in case high risk, wasteful or harmful consequences of scientific researches.
I concede that researches in science is more creative without restrictions by government or social. For dealing with unknown world, that the scientists break normals and are full of creative ideas is criticle.
However, there are other needed factors lead to great results of scientific researches beside exploring unknown. War is a prime example that rapidly accelerates scientific development. After World War II, gradually mature physical science in micro world phenomenon, like studies reveal actions of molecules and atoms, extemely give rise to the development of high-intensity weapons. Lacking political common ground and restriction of governments, and justified excuse of fighting the war, so many countries that attacted by those weapons, like Japan, were in disaster or negatively influenced so far. When it comes to the practice ,where scientific reseach will put, involves war, attaction, or any events harmful to common people's lives and possessions, the restriction by government is especially needed. 
In general, almost every scientific research has both positive and negative results. The pros and cons should be exactly assessed and weighed by government. That government intervenes and restricts a scientific research can probably minimise the risk and harm of it, while maximize the benefits. Thanks to govenment restrcitions that Clone techonology, with emorous benefits, is not developing strongly or even shakes our social morals and values.
Government constrains whereas should be reasonably, which requires exactly assessment mechanism in evaluating the potential and values and harms, whatever of environment or human society, of a scientific reseach. And this is the respondibility of government to ensure the safety of people and resource not be wasted.
Nowadays, it is almost a common sense that no advanced science and technology means no power to be strong for a nation. Even we are in a peace illusory, there are more and more conflicts beneath. Without restriction of developing scientific reseach foucusing invent more harmful weapons, the Third World War is coming soon.