The Transportation Security Administration announced on Monday that it has postponed plans to allow small knives on commercial flights.
The rule change was supposed to go into effect on Thursday, allowing passengers to carry small pocketknives and other small blades. When the change was announced in March, the TSA said it was to align U.S. rules with European Union passenger rules.
“Last week’s events in Boston underscore our continued focus on explosive devices,” said TSA Administrator John Pistole in an e-mail on Monday. “Transportation-security officer training will continue to emphasize these and other evolving threats.”
The Association of Professional Flight Attendants, who represent American Airlines flight attendants, applauded the move and hopes to keep knives off planes forever.
"The United States has banned all knives from commercial flights since the September 11, 2001, attacks for good reason: Knives were the terrorists' weapons of choice in bringing down four jetliners and murdering thousands of Americans. All knives should be banned from planes permanently," the APFA said in a statement.