XML? this should be in json!
"Following a 1999 feasibility study on XML/SGML, the Committee on House Administration adopted XML as a data standard for the exchange of legislative documents" http://uscodebeta.house.gov/download/resources/USLM-User-Gui...
It took the US Govt 17 years to release 200,000 pages of the US code in XML.
Interchanging formats should be relatively easy. Back in 1999, json wasn't even around.
IMO in today's API centric, and javascript ruled world. json would be a lot more useful.
XML is a superior format for semantically marking up content from a very detail-oriented dataset like this.
Heck they didn't even bother to include a way to inherit styles, they are just included in every case.