Sorry to jump in so late here.

I've been to California 30 times this year, I'm a member of most of the Frequent Flyer "Special" level programs, I know the crews on some flights by name. I fly quite a bit. I routinely carry EMT shears (clip them to the OUTSIDE of you bags, will speed things up). I also have hemostats they go through fine.

FYI: There's ample rescue tools on board all planes - including axes and knives, you just have to know whewre they are. I do and I'm not telling.

Once again, my advice to anyone who wants their knives, guns, or any other "special" items to be where you're going when you get there - Fedex your stuff to your destination. It's worth the money.
There's only 2 types of baggage - Carry On and Lost.