Newsnight - 04/01/2010

In-depth investigation and analysis of the stories behind the day's headlines, presented by Jeremy Paxman. Tightened security measures have come into force for all travellers flying into the United States, following a failed attempt to blow up an American airliner on Christmas Day. Richard Watson reports on the controversial targeting of specific groups of passengers, known as profiling, outlining what measures are already being taken and those that are likely to be introduced in the future. Plus David Grossman reports on how the run-up to the election is already hotting up, and Michael Crick looks ahead to what else lies in store for politics in 2010.