How To Tell NetworkManager There's a Wireless Interface To Manage?

   How do I tell NetworkManager in -13.37/x86_64 that there's a wlan0
interface to manage?

   'rfkill list' shows no hard blocks, but NM does not turn on the radio and
allow the wireless interface to become active. It does handle the eth0
interface without issues. The system is running the 3.2.7 kernel (and
modules).

Rich