One bomb after another, they are slowly setting a trap in Baghdad for our military

The insurgents / Islamic militias /Iraqi freedom fighters / al-Qaeda / Sunnis / Shia / secular fighters are containing our soldiers and helpless Iraqi citizens by taking out important bridges in the city of Baghdad.

Larry C. Johnson from No Quarter:

...The bombed bridges of Baghdad are [snip] a warning sign of potential disaster for U.S. forces in Iraq. The ongoing attacks on bridges in and around Baghdad creates significant risks and logistical obstacles for U.S. forces in Iraq. In my opinion these attacks are part of deliberate strategy to create ambush chokepoints, degrade the capability of U.S. Quick Reaction Forces, and enhance the ability of insurgent forces to cut the U.S. lines of communication.

Juan Cole summarizes the latest activity:

Guerrillas blew up another bridge in Iraq on Monday, this time over the Euphrates in Diyala province. Its destruction will make drivers from northeastern Diyala who want to go to Baghdad take a route through Baquba, among the more violent cities in Iraq. Guerrillas are attempting to cause Iraqi society and government to collapse by hitting the infrastructure, and the bridge demolitions are part of that strategy. Late on Sunday, an overpass leading to a bridge south of Baghdad was destroyed, and 3 American soldiers were killed and 6 wounded.

These attacks continue a trend that started in April, with the attack on the Sarafiya Bridge in central Baghdad (see U.S. Policy in the Drink). The loss of these bridges represent more than increased inconvenience for commuters and travelers.

Traffic will be re-routed, which means there will be more traffic in a concentrated area. This is a boon for insurgents who can in turn concentrate their limited resources and simplify their planning for successful attacks. It also creates logistical nightmares for the United States forces. Most of the basic necessities required to sustain U.S. forces in Iraq are carried in truck convoys. The destruction of these bridges will further increase the transportation time for drivers and the maintenance requirements just to keep the vehicles on the road.

I just pray we won't have an horrific incident and be able to point to this warning. Are we being caged in? What are the War Czar and Commander Guy doing about this? Or are they just leaving it to the Generals on the Ground Commission?