Typically there's a subtle difference in courses taken.

For example - at my school Comp Sci were allowed to take physics for physics majors instead of physics for engineers. For both electromagnetic physics and mechanical physics. Typically most engineers are required to take some courses in the some basic courses, ie Dynamics, Statics, and others depending on your major. This all assumes that your ABET accredited. Maybe it's because I don't see an accrediting agency/society. http://en.wikipedia.org/wiki/ABET#Members

Good question. The Engineering profession holds certain code of ethics for the public at large. For instance when you step into a high-rise building, board a cruise ship, or travel across highways they are required to have rigorous testing and design protocol to ensure public safety. I believe NSPE says it best http://www.nspe.org/Ethics/CodeofEthics/index.html

As a programmer who was once an engineer by trade, I would say the difference is that engineering implies manipulation of the pysical sciences, where programming is just logic.

"Just logic" I think really underplays things. That logic ends up in flight control systems, valve control for oil rigs, power grid management, robotics, factory automation, satellites, etc. A lot of software programming has very physical implications.