Is Osama bin Laden's death President Obama's 9/11?

The defining event of President G.W. Bush’s presidency was the 9/11 attacks. He gained much support (whether deserved or not) for pretty much being in the Oval Office when it happened.

So, as the question states, is the death of Osama bin Laden the defining event of Barack Obama’s presidency? Do you think that it is an event of sufficient magnitude to overshadow the rest of his term of office?