21.   Human-rights workers abroad have begun using encryption to prevent oppressive governments from identifying sources and techniques.

22.   Most of the boat people are fleeing humanitarian catastrophes or oppressive governments.

23.   Several accused the United States of putting the interests of an oppressive government in Beijing beyond those of a newly democratized government in Taiwan.

24.   Their independence is a key guarantee against oppressive government.

25.   The group waved placards to highlight what they claim is an oppressive government in Sudan.