Airstrip One

The BBC has an analysis of the shooting of the civil defence minister, and the subsequent arrest of Jamiat-i-Islami officials.

Jamiat is the faction that was led by Ahmed Shah Masood, they were essentially the lynch pin of the Northern Alliance and the faction which wrested Kabul from the Taliban.

So these arrests can mean two things. Either there is a genuine, slow coup, going on with Jamiat removing oponents, or that there isn't and the Karzai faction (who are grouped round the king) are basically framing them. Either way its factional warfare and our troops are in the middle.