This is what it will take to catch folks like them - alert citizens blowing the whistle. Good for them! 
Hear hear.
Yep, our own backyards, bro... We had something on the news the other night about some suspicious characters on the ferry (across the James River) to Surry, where the Surry nuclear power plant is-- two women and two men-- the men paced up and down the ferry like they were casing the area and wouldn't answer the ferry workers when they approached 'em, and the women sat there and pumped the ferry workers with questions about "How deep is the water around the bank where the power plant is? How many people are on security duty at night?" And on like that... At least the workers had the good sense to alert authorities... The report didn't say whether these folks were taken into questioning or not...
The report also did not say what ethnicity they were, either. So I speculate they were not caucasian.
This is what it will take to catch folks like them - alert citizens blowing the whistle. Good for them!