(CNN) -- Federal Air Marshals and flight attendants are angered over the TSA's decision to allow small pocketknives back in aircraft cabins.
The agency announced Tuesday it's relaxing some post 9-11 rules.
TSA head John Pistole says the changes will allow TSA screeners to focus on threats that pose a greater danger to an aircraft, like a bomb.
One passenger says he supports the decision, "I totally agree. It's how you use it. If you give it to a ninja he'll probably do something but the Average Joe just wants it for fingernails and cutting tape or something like that, something average.”
Air travelers will also be allowed to bring billiard cues, ski poles, hockey and lacrosse sticks and golf clubs into aircraft cabins as carry-on baggage.
The head of the air marshal unit of the Federal Law Enforcement Officers Association said "flight attendants are going to be sitting ducks."
A union representing 90,000 flight attendants called the measure "a poor and short-sighted decision."
Both groups say they will ask the agency to reconsider the policy.
The new relaxed rules are set take effect April 25th.