"...I do not believe that anyone expects privacy for an action that they perform within the sight of a cop"
Perhaps my age is showing here, but I remember when the first rule of the internet is that there are no secrets on the internet. The assumption was that, if you didn't want it broadcast on the nightly news, you didn't say it on the internet. It didn't have anything to do with the NSA. The assumption was just that the sysadmin would read your e-mails and monitor your chats if she was bored. It came down to the whole "my hard drive is my property and I have the right to read any e-mails stored on my property". However, it's clear that societal mores have changed, so I'm not sure that it's any more unreasonable to expect privacy in front of a cop.
For instance, maybe I don't want the government to have video of me at a urinal. Of course, cops are human, so they're going to have to use the bathroom. When the cop enters the bathroom and stands waits in line for a toilet, did the government get a right to record my urination? Heck, can I record other people at the urinal, or are those surveillance rights reserved for just the government? Can stores setup bathroom cameras? Okay, I'm getting unreasonably sarcastic here, but I had thought the obvious solution would be to have the cops turn off their camera when they go to the bathroom. However, the public opinion seems clear that we don't want the cops to have an off switch, so I'm a little confused no about who gets to record me in the bathroom.