Al-Qaida chief Osama bin Laden's deputy Ayman al-Zawahri warned in a videotape broadcast by al-Jazeera satellite TV on Aug 4, 2005 that Al-Qaida will wage more attacks in London, and he said British Prime Minister Tony Blair's policies should be responsible for the attacks.
Two armed female police officers patrol near Trafalgar Square in central London, August 4, 2005. Exactly four weeks after suicide bombers struck the British capital, thousands of police took to the streets on Thursday in a high visibility security operation to reassure jittery Londoners.