One of the biggest threats to US security may now come from within Europe, US Homeland Security head Michael Chertoff has told the BBC.
He said militant attacks and plots in Europe over recent years had made the US aware of the "real risk that Europe will become a platform for terrorists".
Mr Chertoff said it was likely security checks on travellers from Europe would be increased.
But he said steps would be taken to ensure travel and trade were not hit. In the interview on the BBC's World News America, Mr Chertoff said he had seen "home-grown terrorism begin to rise in Europe".
http://news.bbc.co.uk/1/hi/world/americas/7190788.stm
He said militant attacks and plots in Europe over recent years had made the US aware of the "real risk that Europe will become a platform for terrorists".
Mr Chertoff said it was likely security checks on travellers from Europe would be increased.
But he said steps would be taken to ensure travel and trade were not hit. In the interview on the BBC's World News America, Mr Chertoff said he had seen "home-grown terrorism begin to rise in Europe".
http://news.bbc.co.uk/1/hi/world/americas/7190788.stm