anchor: He believed that the statement was dangerous because there are research methodologies that are related to evaluating screening and separate ones related to evaluating interventions, and we may not want to obligate tying the two together.
positive: There are research methodologies that are related to evaluating screening and there are separate research methodologies related to evaluating interventions, and we should not make it a requirement to link them together.
negative: He did not protest against the statement because he believed it was acceptable.