Why? Given that in 2010, nearly a decade after 9/11 and almost 7 years after the invasion of Iraq, the US military, State Dept, domestic law enforcement agencies and presumably intelligence agencies still have a severe shortage of Arabic-speaking staff, why do you find the statement stupid? The UK before 9/11 was much less focused on terrorism than the US is now. Developing robust foreign language capability in large organizations is very hard. That's why we often fail at it.

Plus, in my experience, Arabic is a difficult language for people who grew up speaking romance languages to learn. Perhaps not as difficult as Japanese, but still much more difficult than German or French.