The TSA said it would allow small knives onto planes , starting March 25 . ( CNN ) -- Echoing an airline chief and flight attendants The agency 's chief says this puts the U.S. in compliance with international norms . U.S. Rep. Ed Markey calls the practice unnecessary and potentially dangerous . Boeing 's CEO , unions for flight crews and federal law enforcement also oppose it .
The TSA said it would allow small knives onto planes , starting March 25 . The agency 's chief says this puts the U.S. in compliance with international norms . U.S. Rep. Ed Markey calls the practice unnecessary and potentially dangerous . Boeing 's CEO , unions for flight crews and federal law enforcement also oppose it .