21.   Lobbyists for companies that sell drill bits, oil-field equipment and other supplies warn that slapping sanctions on foreign companies would invite retaliatory action from their governments.

22.   Moreover, he said employees must not feel threatened by retaliatory action if they challenge or deny a request for a transfer.

23.   NATO planes passed over the two cities, but the aircraft took no retaliatory action against the attackers.

24.   Police officials have declined to discuss the details of the case, excepts to say that no retaliatory action was ever taken against Alvarez.

25.   Separately, U.S. aircraft were not on the list of products targeted by China for retaliatory action.

26.   Since American forces and their allies began retaliatory action against Taliban and al-Qaida forces in October, the fighting has been largely free of U.S. casualties.

27.   Specialists, however, warned against complacency, pointing out retaliatory action against US installations or individuals.

28.   Such onerous sanctions against two large American companies would threaten U.S. interests and could result in retaliatory actions, U.S. officials have said.

29.   Such retaliatory actions were to be expected, Western officials said.

30.   The administration has responded with increasingly loud protests, but has not threatened any concrete retaliatory action against Beijing.