sociology
Answers
If the United States supports capital punishment, it is unlikely to abandon it in favor of life imprisonment with no chance of parole, since the death penalty is seen as a more severe form of justice for convicted murderers. However, if evidence emerged that suggested that life imprisonment with no chance of parole is more effective at deterring potential criminals from committing murder, then support for the death penalty might diminish. As far as changing opinion, if the United States currently opposing the death penalty, then it is possible that the opinion could change if evidence emerged that proved that it is an effective deterrent. However, this is largely dependent on the sentiment of the individual who assesses the evidence.