And if the changes in many countries remain shallow, the whole floor of public debate has clearly shifted to questions of when and how to reform, rather than why.

ECONOMIST: Tentative steps down the road to democracy | The

Of course, I think Obama would clean the floor with Herman Cain, whose depth of policy knowledge is shallow to say the least.

FORBES: Raising Cain: Why a Herman Cain Primary Victory Might Be a Good Thing

Scientists believe magma is now at a very shallow level and hot cracks in the dome are opening which is causing rockfalls on to the south crater floor.

BBC: Mount St Helens spews out steam and ash on 5 October 2004