Former Pakistan ambassador to the U.S. Husain Haqqani marks the anniversary of bin Laden's killing by pressing the questions that remain unanswered:

We still don’t know who enabled Bin Laden to live freely in Pakistan. Documents found on computers in his compound offer no direct evidence of support from Pakistan’s government, army or intelligence services. But even if Bin Laden relied on a private support network, our [Pakistani] courts should be focused on identifying, arresting and prosecuting the individuals who helped him. Unfortunately, their priorities seem to lie elsewhere.

In Pakistan, most of the debate about Bin Laden has centered on how and why America violated Pakistan’s sovereignty by unilaterally carrying out an operation to kill him. There has been little discussion about whether the presence of the world’s most-wanted terrorist in a garrison town filled with army officers was itself a threat to the sovereignty and security of Pakistan.