This story is Rubbish. US$10 million in cash is equivalent to 1000 bundles of $100 dollar bills which are bundled into U$10,000 sets.
According to the U.S. Treasury, "In $100 bills, the weight of $1
million is about 22 pounds." [that's 10 kg.]...
http://www.ustreas.gov/press/releases/rr2748.htm
This implies that the guy was carrying 100Kg of hand luggage...
the area of a single bill is 6.6294 cm by 15.5956 cm which is
.066294 m by .155956 m = 0.0103389471 square meters
Since $1,000,000 requires 10,000 bills, the total area of the bills is
103.389471 square meters... multiply this by 10, to get $10million
and the total thickness is 124 micrometers * 10,000 = 1,240,000
micrometers = 1.24 meters.
So the height of a single stack is 1.24 meters.
And the volume of the stack is 103.389471 * 0.000124 = 0.01282 cubic meters
I rest my case.