Home Secretary David Blunkett, Britain’s top law enforcement minister, announced a major expansion of the country’s domestic espionage agency on Wednesday and urged a strengthening of antiterrorism laws including those allowing detention of foreigners without trial. Mr. Blunkett spoke in Parliament after publishing a 51-page document setting out the government’s belief that Britain — a close ally of the United States in the invasion of Iraq and the campaign against terrorism — faced a “particularly high” threat of terrorist attack “because of the evidence that terrorist cells are active” in this country. “I am in no doubt that the terrorism threat remains and the need to have the right legislation in place is greater than ever,” he told Parliament. Full Story