The lighting on top. It covers the whole width of the White House, and it looks more patriotic.

I don't know if that will stop people from committing suicide (they'll find another place and/or method if they're that determined), but it will stop people from getting over the fence. This mechanical marvel should be available for sale worldwide.

Thank you for telling me.

This hand has only two possible gestures, a fist and a thumbs-up. At least it's easy to make a thumbs-up.

I never heard of the Noble car brand. Thank you for teaching me about it.