Thank you looking in to it folks. From what I read, FB blocked some access (and rightly so). Still data is available for those who've explicitly allowed (in FB) the apps to 'see' their info and activity. Still what they said will continue to work is not working.
You'll still be able to generate an analysis of most of your own
activity on Facebook, but you won't have access to any information
about your friends (except their names) unless they've also authorized
our Facebook app.
I checked on FB at www.facebook.com/settings?tab=applications and even after authorizing WolframAlpha app, I do not see it listed in my Apps. I went to App settings to explicitly allow it control over my information. How can I do so?
Yes, it was fun the first few times I tried it. I am big on personal analytics. I came back to revisit my analysis and compare with previously saved results. In fact, I wish to find some such tools for my multiple online activities like IMDb movie ratings, Fitbit activity tracking, WordPress activity, list.ly lists, and so on.