1.   But once again the thorny issue of bolts in West Penwith is raised.

2.   But the thorny issues that divided the main trading powers at Seattle appear to be largely unresolved.

3.   Illegal immigration is always a thorny issue.

4.   Melding the top managements also would be a thorny issue.

5.   The other thorny issue to be addressed is that of course funding.

6.   The thorny issue is rather cutting the workforce-not an easy task for a leftwing party.

7.   ...the thorny issue of immigration policy.

8.   The candidate tried to avoid discussing his views on the thorny issue of abortion.

9.   Among the thorny issues raised by this case is how to determine the origin of an Internet site.

10.   Among a littany of thorny issues to be resolved, two have emerged as particularly nettlesome.