keywords: policemen gunmen massacre iraq soldiers
text: 21 shot dead in Iraq police station massacre, two US soldiers &lt;b&gt;...&lt;/b&gt; RAMADI, Iraq, Nov 7 (AFP) - Gunmen rounded up and killed 21 policemen and two US soldiers died in separate attacks in Iraq Sunday, one day after car bombs and clashes killed 36 people in the restive Sunni heartland.