You were looking for:
Canada East Online | Clinton braces for Pennsylvania showdown, invokes Osama bin Laden
Continue to the storyHillary Clinton braced for a do-or-die showdown in Pennsylvania on Tuesday by accusing rival Barack Obama of going negative and portraying him as too untested to be president.
...
"In a final flourish, Clinton released a new television ad Monday with images of Osama bin Laden and hurricane Katrina, as well as historical events like the stock market crash and the bombing at Pearl Harbor, to suggest Obama's not up to the task of handling major crises."