I have a pair of baby nail clippers that I always carry with me. Those things stay sharp forever! And I do mean FOREVER! The ones I have are 19 yrs old! They stay in my carryon bag just for that purpose. I've had no problem with needles. I have a travel sewing kit and that has gone thru security with not a problem. It doesn't have scissors in it. I have had problems with my folding scissors. Many times have had them try to confiscate them, but have been able to get them out and run to my suitcase and get them in there. Now, they just stay home.