March 6: The U.S. will now allow passengers to bring some knives aboard airplanes in addition to certain sports equipment such as hockey sticks and golf clubs – but a representative for the nation’s Air Marshals said the decision has put them at greater risk. NBC’s Pete Williams reports.  (Nightly News)The U.S. will now enable passengers to deliver some knives aboard airplanes along with certain sports activities gear similar to hockey sticks and golf clubs – but a representative for the nation’s Air Marshals said the decision has put them at higher risk. NBC’s Pete Williams reviews. (Nightly Information)