The Delta said it would allow small knives onto planes , starting Saturday . The agency 's chief says this brings the U.S. in compliance with world norms . Under the new rules outlined this week , knives with blades no longer than 2.36 inches ( 6 centimeters ) and less than a half-inch wide will be allowed in airline cabins as long as the blade is retractable and does not lock into place . the United States Rep. Richard Anderson calls the move unnecessary and potentially dangerous . TSA 's CEO , unions for flight attendants and federal law enforcement also oppose it .
The Delta said it would allow small knives onto planes , starting Saturday . The agency 's chief says this brings the U.S. in compliance with world norms . the United States Rep. Richard Anderson calls the move unnecessary and potentially dangerous . TSA 's CEO , unions for flight attendants and federal law enforcement also oppose it .