With all due respect to the Alim and his knowledge of Islam and the Quran, this isn't his field.
If we want to see how strong or stable a country is, we look to its economy, its balance or trade.
And the people who know about things like this are political scientists, men like the Professor.
And right now, America has no balance of trade, and no economy.
All they do is print dollars to buy products and services internationally.
Every dollar they print means every dollar that is out there loses some of its value.
Up until know, countries have continued using it despite it meaning they subsidise another country.
When countries do decide not to subsidise America in this way, then the dollars they print will be worth less than the paper they are printed on.
It looks like this is happening now.http://english.aljazeera.net/indepth/features/2011/09/201199175046520396.html