the M11(sig sauer P226) pistol is DA/SA
the M9(Beretta 92FS) is DA/SA
Don't forget the relatively recent adoption of the HK45c by SOCOM. Another DA/SA pistol, though I imagine they might carry it cocked and locked.
Know the status of your weapon
Keep your muzzle oriented so that no one will be hurt if the firearm discharges
Keep your finger off the trigger until you have an adequate sight picture
Maintain situational awareness