Wordblog: Expenses map shows power of underused reporting tool

Andrew Grant-Adamson on that map of MPs' expenses that Tony Hirst made with a Guardian dataset: "The power of mapping as a tool for journalists has been woefully under-used in this country, in part because of the difficulty in obtaining data. ... Mapping has become on of the most powerful tools for investigative reporters in the US. In the UK it is much harder to obtain databases but there is also a lack of skill in using the techniques."