aspects of congress and parliament to the operational aspects, not necessarily the personal aspects, interwoven, at my case at least, with constant references of change, and why change had really emerged in a much more rapid way for 200 and -- well, for 180 years, the house, at least, had more or less operated under its standing rules. nowadays, the house adopts its rules every two years, but constantly waives them or deviates from them, which i think is unique among parliaments in the world. >> william mckay, what's the biggest difference between parliament and the american system? >> i think the biggest difference is that, at the center of the westminster system there is a paradox. because without a separation of powers you've got members elected to the house whose job individually on the government side is to support the government, but whose job as members of the institution is to criticize the government. this is a riding of two horses, which becomes more or less acute, depending on the political temperature. but it's always there. now, for the past -- oh, i don't know -- 150 years, govern