How to search for friends by location?

How do I search Twitter's users without being asked to authorise the app every single time I search?

• There is a site called http://Mombo.com and in the top right hand corner itallows you to search for any Twitter user by keyword.  It then shows you a set of results.  Then once you select a user it shows you their profile  picture, their name, twitter handle and location and description.  It never asks for any authentication nor authorisation of any sort, so my question is, does anybody know how they do that? For example if you search for "TheDappy" in the search box and then from the results page select the 1 result, it will now go to the search results page and show the information I mentioned above, in this case: "Profile picture of Costas" Costas @TheDappy I am a musician." It is also able to crawl twitter and gather the user and his friends tweets without authorisation or authentication.

• Answer:

  What app that requires authorization are you using to conduct the search? How are you searching Twitter users? If you are using http://search.twitter.com it should not require authorization. If you are using a third-party app then this may be required. How exactly are you searching?