You can expect privacy in your home through clear windows even if the shades are not drawn.

Really? I didn't know that. I thought anything that could be photographed or videotaped while standing on public access land is fair game.. i.e. if I stand on the sidewalk and take a photo of you inside your house.

This is generally true in the US, but you can't be using special equipment (e.g., super long tele lenses.)

Yes. So much, in fact, that having a gun in your car (in some states/situations) can be considered carrying a concealed weapon.