He said: "This is an unstable part of the world.
Bush stated that America is addicted to oil often originating from unstable parts of the world.
The rest comes from other parts of the world - often the most unstable parts.
Some of those little bombs could set off a landslide in this unstable part.
Construction workers labored into the night yesterday, carefully removing the unstable parts of the wall, one section at a time.
Can't help thinking that having Europe's energy generated in a relatively unstable part of the world is a bad idea though.
It is precarious because we depend on supplies of oil from unstable parts of the world.
We need to reduce that dependence because most oil supplies are, of course, in very unstable and unsavoury parts of the world.
America is addicted to oil, which is often imported from unstable parts of the world.