Recycle. Even if recyclables are not sorted mechanically, the sorters are used to handling sharp things. Garbage-men are too, but are not expecting it.
You should throw it away so whoever has to handle the glass at a recycling center won't be cut.
Thrown away, it could injure a worker sorting the recyclables.
Check your local recycling center. Some areas accept glass others don't. If they do, you may need to put it in a metal pail so nobody gets hurt.
Throw it away because some one could get cut
It is a jam jar, the type of glass that can normally be recycled; however, it is broken into several pieces.