Locks on interior doors didn't become common until the 1950s to 1970s. If you live in a historic St. Louis home, you know all about its quirks. For some, that includes interior doors without locks.

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? If you want an added level of security for your apartment or dorm, or travel ...

PHOENIX — It's one of the simplest lines of defense if an intruder gets into your child's school - a locked door. The easiest way to make sure it's in place is if a teacher can lock it from the inside ...

After one entrepreneur's Cadillac was stolen in the 1990s, he went on to design vehicle and home security products that were ...