The U.S. government raised its threat warning to the highest level for commercial flights from Britain to the United States early Thursday in response to a terror plot disrupted in London. Terrorists had targeted United, American and Continental airlines, two U.S. counterterrorism officials said. In addition to the highest alert for flights from Britain, the alert for all flights coming or going from the United States was also raised slightly. The government banned beverages, hair gels and lotions from flights, explaining only that liquids emerged as a risk from the investigation in Britain. Full Story