By Ed Johnson Fresh new security systems surface each day, and it is a locksmith's responsibility to be updated with all the most hi-tech deadbolt locks and security safes. In most cases, a lock installer isn't going to be able to keep in business if he or she can't do the job on an assortment of car keys and locking devices. It can also be crucial that Boston lock rekeying services run 24 hours every day to account for the miscellaneous work opportunities that come at unusual times in the night. There are more than enough job opportunities available...