BBC Misinformation or just sloppy researchers

BBC have been quick to advertise their Election 2010 website now the election has been officiallly called. It's a pity that the information they put up about UKIP policy on Afghanistan & Defence is wrong. They claim that UKIP "would withdraw from NATO" yet the UKIP Defence Policy clearly states

"UKIP’s Defence Vision recommendations:

To defend our national interests, maintain the NATO alliance, support our traditional partners. To disentangle our forces from the EU To keep our independence by retaining – always – ultimate command and control over our national forces"

You can read the full policy at http://www.ukip.org/content/ukip-policies/1453-defence-ukip-policy

Is this deliberate BBC disinformation or just sloppy researching?
http://news.bbc.co.uk/1/hi/uk_politics/election_2010/8515961.stm#subject=defence&col1=conservative&col2=labour&col3=ukip

Oops! It looks like they got the message as half the original info has now been removed.