21.   Discussion about a new emblem, an idea bandied about for years, brought Kellenberger to his second thorny problem.

22.   For Leavitt, there is the thorny problem of Hatch, who is making a late addition to the crowded field of Republican presidential candidates.

23.   He urges the crowd to listen carefully to the candidates and pay attention to what each would do to tackle the thorny problems of the day.

24.   In his still-brief tenure Pataki has excelled at distancing himself from thorny problems like the school governance issue.

25.   It also removes a thorny problem that Kavanagh would have had in seeking the death penalty.

26.   Kresser, however, said the campaign appeared to be looking for a way out of a thorny problem and had misinterpreted what she said in the earlier conversation.

27.   Like speech recognition, machine translation has been both a lofty goal and a thorny problem in the computer community for years.

28.   One committee is concerned with thorny ethical problems that can arise in the everyday practice of medicine.

29.   Other ideas, such as tapping Social Security funds, pose thorny political problems.

30.   Perhaps the most thorny problem Panama has taken on is the question of the legal status of the Cubans themselves.