The TSA in it's infinite wisdom has decided Knives on airline flights are just fine as long as:
Knives with blades no more than 2.36 inches in length from tip to where the blade meets the handle or hilt will be approved for carry-on.
The blade must be no more than half an inch in width.
The TSA also announced toy bats and sporting equipment such as hockey sticks and golf clubs will also be allowed on board aircraft.
What will you be carrying?