Why do you think it took from 1999, when the XBRL concept was invented, until 2009 for the SEC require that public filers adopt? 2. From the PWC Webcast on XBRL, what are the differences between the bolt-on and embedded approach to XBRL? 3. If you worked in the Finance and Accounting department of a company, how could you use XBRL tags to help in your job? Could XBRL tagging help other functions in a company do their jobs