1.   Moreover, the thorny question of additionality will have to be solved.

2.   The three still have to sort out the thorny question of who will run the centre and where it will be.

3.   These are not tremendously forceful answers to the thorny questions posed.

4.   This is the really thorny question, but only relatively recently has it begun to receive the attention it merits.

5.   Which just leaves us with the thorny question of prices.

6.   This constitutes a fundamental challenge to the basis of the British planning system, and raises a host of thorny questions about the nature and efficacy of the system.

7.   Now, colleagues we come to the thorny question of election to these bodies.

8.   Although single-sex education is hardly a new idea, its resurgence in public schools poses thorny questions for lawyers, educators and policy experts alike.

9.   Although producers assume much of the responsibility for putting a story together, the thorny questions and ethical issues are resolved at a higher level.

10.   And the commission deferred until next year the thorny question of how to provide affordable phone service to rural areas, which are expensive to serve.