These instructions allow you to run wifi-radar as a normal user without using sudo. Thanks to Flipp Bunts <flipp.bunts@gmail.com> for this HOWTO.
HOWTO get wifi-radar custom launcher to use PAM authentication in Gnome:
USER=root
PROGRAM=/usr/local/bin/wifi-radar.py
SESSION=true
#%PAM-1.0
auth sufficient pam_rootok.so
auth sufficient pam_timestamp.so
auth required pam_stack.so service=system-auth
session required pam_permit.so
session optional pam_xauth.so
session optional pam_timestamp.so
account required pam_permit.so
# ls -lh /etc/security/console.apps/wifi-radar /etc/pam.d/wifi-radar
-rw-r--r-- 1 root root /etc/pam.d/wifi-radar
-rw-r--r-- 1 root root /etc/security/console.apps/wifi-radar
name : wifi-radar
command : /usr/local/bin/wifi-radar
icon : /usr/share/pixmap/wifi-radar.svg