"We're concerned about anybody that is healthy competition, " says David Bernauer, Walgreen's chief executive.

FORBES: In The Pill Box

"I wouldn't take that legislation too seriously, " Chief Executive David Bernauer said back in February.

FORBES: There Oughta Be a Law

Bernauer joined the drugstore chain in 1967 as a pharmacist and by 1994 had risen to CIO.

FORBES: Magazine Article

Arrington cites the example of David Bernauer of Walgreen (nyse: WAG - news - people ).

FORBES: Magazine Article

One famous photo shows border guard Conrad Schumann, rifle casually slung on his shoulder, leaping over coils of barbed wire on Bernauer Strasse.

FORBES: A Development In Berlin Threatens The Wall That Once Divided A Continent

Addressing the ceremony on Bernauer Street, famously divided by the Wall and now site of a memorial, Mayor Wowereit said the capital was remembering the "saddest day in its recent history".

BBC: Germany marks 50 years since Berlin Wall