The UK will move towards an integrated electronic border security system, linking biometric passports and visas with electronic checks on entry and exit, helping to track and intercept terrorists and criminals and to stop illegal immigration.

BBC: Key points: Brown speech

U.S. intelligence agencies have powerful capabilities to intercept telephone calls and e-mails, but al-Qaida has become very disciplined at avoiding electronic communication.

NPR: Risky Business: U.S. Must Rely On Foreign Spies