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.
Under the new guidelines, airport staff are carrying out full body-checks on passengers travelling from countries which the US considers a security risk - including Pakistan, Iran, Yemen and Nigeria.
Here Prime Minister Gordon Brown says full body scanners will be introduced at British airports as they are "essential" to tackle the terror threat. But questions have been raised about their cost and effectiveness.
Tonight, Richard Watson will be reporting on the controversial targeting of specific groups of passengers, known as profiling, outlining what measures are already being taken and what are likely to be introduced in the future. We will be discussing the merits and pitfalls of profiling.
Also tonight, the main parties have been stepping up their pre-election campaigning.
The Chancellor Alistair Darling joined the fray this morning publishing a report claiming a £34bn credibility gap in the Conservatives' spending plans. Tory leader David Cameron, dubbed the report "junk" saying he'd spotted £11bn of errors in eleven seconds.
He also unveiled the first part of a draft manifesto, which he says puts the NHS at the heart of Tory plans.
Tonight David Grossman will report on how the run up to the election is already hotting up and we'll be speaking to the Chief Secretary to the Treasury and his Conservative shadow.
Michael Crick will also be looking at the political year ahead and we will be joined in the studio by the Newsnight political panel - Peter Hyman, Olly Grender, and Danny Finkelstein.
Join Jeremy at 10.30pm on BBC Two
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