July 7, 2005 terror attacks in London
The bombs were to be smuggled onboard in passengers' hand luggage. The planned attacks might have been the biggest terrorist attacks since &lt;a href="w%3ASeptember%2011%2C%202001%20attacks"&gt;9/11&lt;/a&gt;, government officials have said. Information gathered after recent arrests in Pakistan convinced British investigators they had to act urgently to stop the plot. The original information about the plan came from the Muslim community in Britain, according to a British intelligence official. The tip resulted from a person who had been concerned about the activities of an acquaintance after the 
, the official said.
Police in Britain uncover suspected terrorist plot