We stand at a transformational moment in history, where there is tremendous potential not only to tear down walls, but also to build bridges between people separated by geography, cultures, and beliefs.

WHITEHOUSE: Presidential Proclamation -- World Freedom Day

Committees in the ministry are devising plans to tear down the walls within Japan's financial system.

ECONOMIST: Japanese finance

Dorner found himself surrounded by police, who moved in and began to tear down the walls of the cabin.

CNN: Dorner manhunt: A car chase, a gunfight and a fiery cabin

How do you tear down these walls?

FORBES: How To Tear Down The Walls To Business Innovation