limiting a source of something tht has a negative impact on something else has a positive impact on that something else
all_things has impact_on_other_things protected_by_secrecy is restricted_thing. fact_gathering_forbidden_predicate is predicate. authentication_protected_thing is restricted_thing. things has limits threat_of_death is good_deterrent. hazardous_waste has negative_environmental_impact negative is denial. sensitive_but_unclassified_thing is restricted_thing. common_cold is self_limiting_thing.