21.   It also highlights the difficulty in collecting good intelligence as coalition forces seek out scattered and hiding enemy fighters.

22.   The case highlights the difficulty of tracking missing people who are known to lead transient lives.

23.   The divisions in APEC over tariffs highlight the difficulty it faces forging common ground between countries as economically diverse as Japan and China, the United States and Mexico.

24.   The case highlights the difficulty of keeping offensive or illegal material off the Internet.

25.   The case of the two Serb officers highlights the difficulties faced by the NATO-led force in Bosnia.

26.   The case of the two Serb officers highlights the difficulties faced by the NATO-led peace force.

27.   The case of the two Serb officers highlights the difficulties the NATO-led force in Bosnia faces.

28.   The case highlights the difficulties the Chinese elderly face as the extended family gives way to modern, smaller families less bound by traditional values.

29.   The comments by both men echoed charges by human rights groups and highlighted the difficulty in bringing peace to the republic after nearly two years of war.

30.   The shattered pavement on the road to Manaure highlighted the difficulties faced by OAS monitors for the Colombian vote.