DrD:~ will$ airport -s
                            SSID BSSID             RSSI CHANNEL HT CC SECURITY (auth/unicast/group)
                         Wiretap 00:1c:10:34:47:50 -74  8       N  -- WPA2(PSK/AES/AES)
                         Wiretap 00:13:10:e3:02:02 -77  3       N  -- WPA2(PSK/AES/AES)
                         Wiretap 00:13:10:0f:b0:36 -66  2       N  -- WPA2(PSK/AES/AES)