I think your answer might be here:
joshua@SNKNGSHPS:~$ sudo iwlist scan
[sudo] password for joshua:
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
...
Type: Posts; User: ModelM; Keyword(s):
I think your answer might be here:
joshua@SNKNGSHPS:~$ sudo iwlist scan
[sudo] password for joshua:
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
...