Knife crime is up at least 18% in London. I may call my wife and ask her not to go to go to London today.

And it's up all over Britain and Wales! Internet sales of knives are blamed!

From an ad on a UK knife-selling website (note that this is a Japanese made knife, 10 cm. blade, lock back, with quick opening thumb stud):

The big, wide, flat ground blade is styled like a classic Texas pocket knife and offers plenty of belly for cutting, slicing and skinning yet enough "point" for sticking as well. It's made from Japanese AUS 8A stainless steel with a beautiful satin polish and a profoundly sharp edge that lasts yet is easy to re-sharpen if necessary.

The classically shaped handle also mirrors its Texas heritage, sporting a solid stainless steel frame, handsome faux stag horn scales, and stout bolts and pins. It's outfitted it with our unrivaled Tri-Ad® lock. Proven again and again to be the strongest, most reliable lock on the market, which is an enormous benefit if your life (or fingers) are on the line.

For carrying comfort, convenience and quick access, the Lone Star Hunter comes with ambidextrous pocket clips and a thumb stud* so it can always travel with you and be ready to spring into action at will. (Emphasis mine.)

The US needs, desperately, a vast improvement in its mental health care. Among others, a lot of our politicians badly need it if for no other reason than they seem to need help listening to something other than the rustle of dollar bills.