Of that group, Manningham's appears injury to be the most severe. He missed Sunday's game against Miami and did not have his helmet for the start of today's practice. The other three were taking part in individual drills and likely will be listed as "limited" on today's practice participation report.When people first hear that you can manufacture something by printing it, they have a hard time visualizing it. Think of it this way: 3D printers build things by depositing material, typically plastic or metal, layer by layer, until the prototype or final product is finished. When the design is downloaded into the printer, a laser creates a layer of material and fuses it..

"Glen was a superb and respected operator, a true quiet professional," Webb told ABC News today. "Don feel sorry for him, he wouldn have it. He died serving with men he respected, protecting the freedoms we enjoy as Americans and doing something he loved.Notes: CB Nnamdi Asomugha (leg