http://www.oasis-open.org/cover/elementsAndAttrs.html
"A perennial question arising in the mind of SGML/XML DTD designers is
whether to model and encode certain information using an element, or
alternatively, using an attribute. For example, given some information
about the 'title' of a work and the goal of encoding this information in
markup, which of the two encodings is preferable, and what principles can
be used to decide?"
Paul Prescod - http://itrc.uwaterloo.ca/~papresco
Marge: "It's almost as if Snake is killing from beyond the grave."
Lisa: "I told you that capital punishment isn't a deterrent."
- Simpson's halloween special