There is literally concrete evidence of their work." Tony Hawk says skateboarding was once a sport on the edge of society.

VOA: special.2009.09.11

People lived on the edge of death." During the frequent droughts, Mohamed Ait Lamine and others left their families to look for work on construction sites in cities far away.

VOA: standard.2009.12.10

What's more, most good job candidates are doing cutting-edge work, not simply reproducing what their tenured colleagues already do.

WSJ: Should Tenure for College Professors Be Abolished?

Some of the most cutting edge work in K-12 is being led by social entrepreneurs starting new private schools to eliminate the achievement gaps among underserved students, like Rocketship Education in the US, Spark Schools in South Africa and Innova Schools in Peru.

FORBES: Education Finally Ripe For Radical Innovation By Social Entrepreneurs

Independent auditors found that Lockheed has only achieved a 7% operating margin on the program to date, which is far below the kind of returns that commercial companies typically generate on cutting-edge technology work.

FORBES: Move up http://i.forbesimg.com t Move down