gistfile1.txt

$ curl -i https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=sfmta_muni
HTTP/1.1 400 Bad Request
content-length: 61
content-type: application/json; charset=utf-8
date: Wed, 13 Nov 2013 22:04:41 UTC
server: tfe
set-cookie: guest_id=v1%3A138438028115535261; Domain=.twitter.com; Path=/; Expires=Fri, 13-Nov-2015 22:04:41 UTC
strict-transport-security: max-age=631138519

{"errors":[{"message":"Bad Authentication data","code":215}]}