Originally Posted by
johnston21
http://www.tsa.gov/travelers/airtrav...rial_1252.shtm
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.
TSA does not define the security rules for LHR!
I have had no problem with sewing or knitting needles at LHR T3 and T5, a tiny pair of embroidery scissors should be ok but I always use take nail clippers to cut as they are guaranteed to get through