My father and I saw and reported two men photographing a power station in Southern California. One was taking pictures and the othe was squatting down taking notes. They left the area on foot - no cars near the location where they were.
When we got turned around they were already gone. Police showed up. Took the report. Police office reached out to shake our hands - he made the first gesture to shake our hands, not the other way around. That was surprising to me. I believe we witnessed bad people making plans.
I wonder how many others in America have witnessed something similar. This is truly frightening. But again, we can not let the terrorists win. They want us to live in fear. A little fear is healthy. Terror is not.