Toronto Star media columnist Antonia Zerbisias looks at the relative silence in the U.S. over the shooting of Giuliana Sgrena versus, say, the Eason Jordan affair.

Some excerpts:

Consider that Sgrena's car, reportedly 700 metres from the airport, had already cleared other U.S. military checkpoints. Still, it was drilled by bullets.

Although exactly how many bullets remains a mystery since, at last report, when the Associated Press asked to see the car — in which Italian intelligence officer Nicola Calipari was killed and another official injured — the U.S. military said it didn't know where the thing was.

Which doesn't inspire confidence in the investigation into this murky affair that the U.S. has promised to conduct. ...

What I find really disturbing is how few American journalists are protesting what appears to be the Pentagon's callous disregard for getting out the truth, either by making it safer for journalists to do their jobs or by its own full disclosure of the facts of these killings.

Zerbisias also provided a pointer to a truthout.org feature on how the U.S. military threatens journalists.