The U.S. has also been criticized for advocating concern for human rights while refusing to ratify the Convention on the Rights of the Child. The U.S. has publicly stated that it is opposed to torture, but has been criticized for condoning it in the School of the Americas. The U.S. has advocated a respect for national sovereignty but has supported internal guerrilla movements and paramilitary organizations, such as the Contras in Nicaragua.[24][25] The U.S. has been criticized for voicing concern about narcotics production in countries such as Bolivia and Venezuela but does not follow through on cutting certain bilateral aid programs.[26] The U.S. has been criticized for not maintaining a consistent policy; it has been accused of denouncing alleged rights violations in China while supporting alleged human rights abuses by Israel.[22]