Private pilots who have a great deal of knowledge, farmers who may have airstrips and all of us to be very vigilant about suspicious activity.

BBC: Call for anti-terror border force

But if you are a Wharton professor, it is a pretty certain bet that you have a great deal of knowledge that is not shared by the general public.

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Women have some great innate investing skills once they have a base of financial knowledge to build on.

FORBES: 3 Reasons Why Men Might be Victims of the Gender Gap in Financial Literacy

"By combining Nike's understanding and knowledge of great athletes with the powerful technology of Kinect, we have created a personal training program unlike anything currently available, " said Yusuf Mehdi, corporate vice president of Marketing and Strategy of the Interactive Entertainment Business at Microsoft.

ENGADGET: Nike allies with Xbox 360 for Nike+ Kinect Training: real-time feedback, training reminders through your phone