Rancher Carol Kimsey, who lives in a valley near the Pacific Ocean on the U.S.-side of the fence, says the border barrier has improved the quality of life in the area.

NPR: San Diego Fence Provides Lessons in Border Control

In a recent survey of 700 international business professionals by Interbrand, a consultancy, 80% of respondents cited low quality as an important barrier to the sale of Chinese products abroad.

ECONOMIST: Chinese business

Only 3% of corporations and 11% of law firms identify the quality of work as their main barrier to outsourcing legal services, an extraordinary decline from the past.

FORBES: Legal Services Outsourcing (LSO) -- Maximizing Comparative Advantage

Digital Realty continued its acquisition spree during the quarter as part of its long-term investment objectives, which focus on investing in institutional-quality data center facilities in high-barrier-to-entry markets that have significant potential to generate attractive risk-adjusted ROI.

FORBES: Digital Realty Trust Builds Strong First Quarter Earnings

The slightly artificial quality that comes with this technology -- even wearing the spectacles puts a barrier between the movie and reality -- complements Pi's magical realist yarn, and Claudio Miranda's luminous, glossy, color-saturated cinematography gives the movie a picture book look.

CNN: Review: 'Life of Pi' is bold and wondrous

Almunia stood alone and exposed as a defiant one-man barrier in the face of a barrage of Barcelona attacks as Arsenal were comprehensively ripped to shreds by the quality of the holders' approach play.

BBC: Arsenal 2-2 Barcelona