= The search for the missing people was impeded by bad weather.
= He was accused of perpetrating human rights violations.
= It is always difficult to gauge public opinion accurately.
= Letters to and from inmates are censored.
= He was demoted for neglect of duty.
= The CIA has intercepted messages between terrorists.
= The organization has been spearheading a campaign to reform the educational system.
= Most scientists concur that global warming has become an undeniable reality.