The documents illustrate security analysts' tracking of bin Laden's movements.
"I think the fact that the three of us are standing here talking about a peaceful transfer of power speaks to the institutional integrity of our country," former President George W. Bush said.
One of the modern Inauguration Day traditions for presidents leaving office is to write their successors a letter offering best wishes and advice.
We're looking back at Inauguration Day of years past and the way the Bush family transitioned their presidencies.
Nancy Bush Ellis was an environmentalist who switched parties when her brother ran for president in 1979.
The three most recent former presidents hope an awareness campaign to promote confidence in its safety and effectiveness would be a powerful message.