It depends on the country that you are flying to and fro. I know that the UK do not allow any sharp equipment whatsoever, so that includes needles. (BAA).
The US have increased their security, so it may now depend on the airline, but usuallly, they allow minor things like that.
From the TSA site:
Traveling with Special Items
Knitting needles are permitted in your carry-on baggage or checked baggage.
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 which cannot go through the checkpoint and must go in your checked baggage.
It might not be a bad idea to print out the page from TSA to let the security people know that you are allowed to have knitting needles.
Other contributors have said:
no cause anyone can kill the pilot
Yes, you can bring a shaver in your carry-on luggage.
Yes, you can bring a straightener in your carry-on luggage.
Yes, you can bring a shaver in your carry-on luggage.
Yes, you can bring a laptop in your carry-on luggage when traveling.
Yes, you can bring an Xbox in your carry-on luggage when traveling.
Yes, you can bring your laptop in your carry-on luggage when traveling.
Yes, you can bring a laptop in your carry-on luggage when traveling.
Yes, you can bring an Xbox in your carry-on luggage when traveling.
Yes, you can bring Dramamine in your carry-on luggage on a plane.
Yes, you can bring a mirror in your carry-on luggage on a plane.
Yes, you can bring a pin on a plane in your carry-on luggage.