Graph API '/feed' connection is requiring an access token even for Public data on a Page

Kin开发者_运维百科dly help me in understanding this:

Suppose I'm working with: http://graph.facebook.com/cocacola

http://graph.facebook.com/cocacola/feed was working but today its returning "An access token is required to request this resource."

Did the page owner changed something on it? If I'm the page owner how can I make it available without access token and how can I make it require the access token?

Thank you in advance

The API now requires authentification.

It is still possible to access the feed by RSS, for public pages https://www.facebook.com/feeds/page.php?id=PAGE_ID&format=rss20

Exemple (for facebook itself) https://www.facebook.com/feeds/page.php?id=20531316728&format=rss20

Apparently it was a design change scheduled for Friday, June 3rd 2011... You need an access token to access posts and feed now. This is covered in the documentation for the Page object

http://developers.facebook.com/blog/post/509/