OK to Travel with Needles

I have been thoroughly confused if its alright to carry knitting needles on the plane everywhere I go. Reading some blogs confused me even more... some report they had no problem with carrying their knitting with them on the plane if they had wooden or plastic needles... others reported they still had problems.
Today I came across this... and I think I am pretty clear now. For those of you who are still unsure like me read below:

Transporting Knitting Needles & Needlepoint

Knitting needles are permitted in your carry-on baggage or checked baggage. However, there is a possibility that the needles can be perceived as a possible weapon by one of our Security Officers. Our Security Officers have the authority to determine if an item could be used as a weapon and may not allow said item to pass through security. We recommend the following when bring knitting needles on an airplane:

• Circular knitting needles are recommended to be less than 31 inches in total length
• We recommend that the needles be made of bamboo or plastic (Not Metal)
• Scissors must have blunt points
• In case a Security Officer does not allow your knitting tools through security it is recommended that you carry a self addressed envelope so that you can mail your tools back to yourself as opposed to surrendering them at the security check point.
• As a precautionary measure we recommend that you carry a crochet hook with yarn to save the work you have already done in case your knitting tools are surrendered at the checkpoint

Most of the items needed to pursue a Needlepoint project are permitted in your carry-on baggage or checked baggage with the exception of circular thread cutters or any cutter with a blade contained inside. These items cannot be taken through a security checkpoint. They must go in your checked baggage.