Article: SECURITY, SYMBOLISM COLLIDE AT WHITE HOUSE SECRET SERVICE WANTS 'ZERO RISK'.(NEWS)

Byline: Associated Press

WASHINGTON -- The White House is, at once, the symbol of an open, unafraid nation and a wary fortress separated by iron bars and concrete slabs from the bustle of everyday America.

When he was outside campaigning to get in, President Bush spoke of how dispiriting it was that episodes of violence should have restricted people's access to the people's house. He promised to look into it if elected.

He was inside Wednesday when a gunman reminded everyone why concrete barriers with tired plants on top were set up in the first place.

Pennsylvania Avenue in front of the White House has been closed to traffic since ...

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