Essayist: The way science is conducted and regulated can be changed  But we need to determine whether the changes are warranted, taking into account their price  The use of animals in research could end immediately, but only at the cost of abandoning many kinds of research and making others very expensive  The use of recombinant DNA could be drastically curtailed  Many other restrictions could be imposed, complete with a system of fraud police
But such massive interventions would be costly and would change the character of science
We need to be aware of the impact of change in science before changes are made.