Had the same contents in my bag essentially unchanged for last three years.

For some reason my carry on bag was "flagged" and TSA agent came to end of belt saying she was going to open and looked inside.

She literally took every item out of every pocket of my bag. While doing so, she opened my small deck of business cards (which were in readable/clear plastic) and paused to read them.

Serveral items she asked, "what is this". Yep, a USB drive.....
And what's this? Yep, multi-function power adapter for different regions.
Then she held up a paperback book, "Slash" and said, "planning on a long flight?"

Also in my bag was two pages of my doctors note and detailing a current medical issue. She proceeded to pause, both hands on page as if to start reading them. At this point, I told her you need to stop reading immediately and I actually grabbed the paper from her. She said, 'excuse me'.

I then told her that my medical records are none of her business and have nothing to do with security and I find it offensive for you to start reading my paperwork.. I think at that point she knew I was deadly serious.

She then ran bag back through xray, never found whatever she was supposedly looking for, and then said "you're all set" and walked away.

Needless to say I was caught off guard and probably should have asked for a supervisor. Angry can not begin to describe how mad I was.