1. Businesses are hesitant to invest in capital.
2. The housing market is terrible right now--especially housing starts.
3. Jobs related to #2 and #3 generally go to lower-skilled workers. They're the ones who are struggling right now (with something like 16% unemployment for men without a HS diploma).
This isn't the end of the American economy, people. Demand is low for goods produced by low-skilled, American-based labor. Things will improve with time.