British police stand guard outside a house in High Wycombe, England, on Friday. The Bank of England froze the assets of 19 people early Friday, naming them as people arrested in connection with the alleged terror plot.
Los Angeles Airport Police officer Michael Manahan guides his dog to check luggage on Friday at Los Angeles International Airport.
NEW RULES
Liquids are banned from carry-on luggage and cannot be taken through security checkpoints. That includes drinks, toothpaste, perfume, shampoo, hair gel, suntan lotion and similar items. Drinks purchased in the airport cannot be carried onto flights.
Baby formula and medications will be allowed but must be presented for inspection at security checkpoints.
All shoes must be removed and placed on an X-ray belt for screening.
Passengers traveling to the United Kingdom should contact their airline for information about extra security measures. Laptop computers, mobile phones and iPods were among items banned on British flights.