Got this in the email, and I visited the other day to confirm that yes they have improved these cages an awful lot since they were installed.
I was by South Station today and noticed they have finally made improvements to the bike cage that was installed last year I think (maybe earlier) to bring it up to a true secure cage. There are new cameras and a secure door is installed though the sign says it wont be fully working until October when you will need a bike charlie card.
Thanks John for the tip
