The greatest story, or the trickiest?

最伟大或最棘手的故事？

That may be the trickiest question of all.

这也许才是最棘手的问题。

Perhaps the trickiest issue is France's role in NATO.

也许最棘手的问题要属法国在北约组织（NATO）的作用。

Extract oil from some of the world's trickiest spots.

——从全世界最棘手的地区开采石油。

Is this one of the trickiest circuits on the calendar?

这是不是赛程中最诡异的赛道之一？