From CNN and others:

KABUL, Afghanistan (CNN) -- At least four people have been killed and 70 injured in violent protests in Jalalabad over reports U.S. interrogators at Guantanamo Bay Naval Base desecrated copies of the Quran during questioning of prisoners held there. 

The trouble started as thousands of demonstrators marched Wednesday through the streets of Jalalabad, in the eastern part of the country, officials and eyewitnesses said.

Afghan's interior ministry reported police fired at the crowds when they began to attack government buildings.

...

Rallies were also held in several cities in neighboring Pakistan, where the religious party alliance MMA announced plans to mount a countrywide protest against the United States Friday.

The country's national assembly passed a resolution demanding the U.S. government investigate the incident and punish anyone found to be responsible.

The U.S. State Department announced Tuesday the Pentagon would investigate the allegations, which were first reported in Newsweek magazine.

The magazine quoted sources as saying investigators looking into abuses at the military prison in Cuba found interrogators "had placed Qurans on toilets, and in at least one case flushed a holy book down the toilet."

U.S. interrogators are reported to place Qurans on toilets and maybe even flushed one down a toilet and people riot in the streets.  Their “Holy Warriors” cut off innocent (but non-believing) people's heads and there is no complaint from these same people.  Someone, please, tell me how we can resolve these cultural differences in values.  These differences are just so extreme that I can't imagine a peaceful co-existence.