From driver-less cars to delivery drones, a new generation of robots is about
 to revolutionize the way people work, drive and shop. But there is one 
area where robots are already entrenched and spreading fast: the 
industrial sector, especially manufacturing and storage.
Robots
 have long toiled alongside workers in factories and warehouses, where 
they load boxes with items ordered online, drill and weld car parts, or 
move food from one conveyor belt to the next.
Now many experts worry about the dangers that robots pose to the humans who work alongside them.
Robots
 have caused at least 33 workplace deaths and injuries in the United 
States in the last 30 years, according to data from the 
Occupational Safety and Health Administration. That may not sound like many, but the number may well understate the perils ahead.
Unlike
 today’s robots, which generally work in cages, the next generation will
 have much more autonomy and freedom to move on their own.
“In
 order for robots to work more productively, they must escape from their
 cages and be able to work alongside people,” said Kent Massey, the 
director of advanced programs at HDT Robotics. “To achieve this goal 
safely, robots must become more like people. They must have eyes and a 
sense of touch, as well as the intelligence to use those senses.”
Until
 now, robots have largely been used in manufacturing, particularly in 
the auto industry. They have mostly been “dumb robots,” designed for 
repetitive tasks that are dirty, dangerous or dull.
Regulations
 have required that the robots operate separately from humans, in cages 
or surrounded by light curtains that stop the machines when people 
approach. As a result, most of the injuries and deaths have happened 
when humans who are maintaining the robots make an error or violate the 
safety barriers, such as by entering a cage.
But
 the robots whose generation is being born today collaborate with humans
 and travel freely in open environments where people live and work. They
 are products of the declining cost of sensors and improved artificial 
intelligence algorithms in areas such as machine vision. Google’s newest
 driverless car, for instance, is completely automated, without a 
steering wheel or a brake pedal.
Along
 with the new, free-roaming robots come new safety concerns. People 
worry about what happens if a robot spins out of control, or the first 
time a driverless car kills someone.
“It’s
 the fear of robots,” said Bryant Walker Smith, a fellow at the Center 
for Internet and Society at Stanford Law School who studies driverless 
cars. “There’s something scarier about a machine malfunctioning and 
taking away control from somebody.”
As
 a result, these robots require extra protective measures. The Google 
car has a padded front to soften any blow if the robot or a human causes
 an accident. The windshield is plastic, and the front of the car is 
rounded so it is less likely to hurt or trap pedestrians or cyclists.
Another
 robot, Baxter, which does repetitive jobs in workplaces like packaging 
small items, is designed to sense humans and stop before coming in 
contact with them. It also has a display screen that cues those who are 
nearby about what the robot is focusing on and planning to do next.
If
 robots and humans are going to live and work together, Baxter and its 
progeny will need more of these advances. To develop them, the robots’ 
creators will need to draw on one of the most human of emotions: 
empathy.