About this one:

>  * The voting record of the United States Senate in XML is quite a
>    pain to find; e.g.:
>    http://www.senate.gov/legislative/LIS/roll_call_votes/vote1122/vote_112_2_00172.xml

How to locate the repository where all such vote documents reside?
This will be handy if we want to analyze/process a set of documents by
using, for example, the collection() function.


Cheers,
Dimitre