21.   The summit meeting has crystallized another set of tensions for Clinton.

22.   Writer-directors Daniel Myrick and Eduardo Sanchez were savvy enough to make it a point of tension for Michael and Joshua that Heather insists on filming everything.

23.   Human rights groups, priests and forestry management workers active in the area said they had warned of rising tension for months.

24.   Oldham, a hardscrabble former mill town, has been beset by racial tensions for several months.

25.   Relations between Sudan and its two neighbors have been fraught with tension for several years.

26.   The Amur, which forms part of the border between Russia and China, has been the scene of tension for years.

27.   The attack and the shooting of a U.S. diplomat heightened tensions for international officials monitoring a cease-fire since December.

28.   The attack late Friday and the shooting of a U.S. diplomat heightened tensions for international officials monitoring a cease-fire since December.

29.   The guesthouses have been used in the past during periods of political tension for temporary detention of dissidents.

30.   The kit also includes a computer to work out the tension for each string.