A passenger let loose with pepper spray in a Jet Blue plane this morning after it landed at JFK. Another woman had an "eyebrow razor" and used it to cut a passenger. I am going to presume that the eyebrow razor is allowable as it's equivalent to a disposable razor, but somebody missed the pepper spray.
http://nypost.com/2015/08/26/jetblue...after-landing/
ETA: For some reason, I thought airports in Jamaica used TSA as I thought I'd read something about TSA invading Jamaica a few years ago; however, it seems I am mistaken.