The National Intelligence Estimate
At least that portion which the powers that be are willing to release to the general public is not that long and doesn't have to be distorted in the manner both sides seem to be willing to.
Here's a snippet:
Here's the whole thing
We judge the US Homeland will face a persistent and evolving terrorist threat over the next three years. The main threat comes from Islamic terrorist groups and cells, especially al- Qa’ida, driven by their undiminished intent to attack the Homeland and a continued effort by these terrorist groups to adapt and improve their capabilities.
We assess that greatly increased worldwide counterterrorism efforts over the past five years have constrained the ability of al-Qa’ida to attack the US Homeland again and have led terrorist groups to perceive the Homeland as a harder target to strike than on 9/11. These measures have helped disrupt known plots against the United States since 9/11.
We are concerned, however, that this level of international cooperation may wane as
9/11 becomes a more distant memory and perceptions of the threat diverge.
Al-Qa’ida is and will remain the most serious terrorist threat to the Homeland, as its central leadership continues to plan high-impact plots, while pushing others in extremist Sunni communities to mimic its efforts and to supplement its capabilities. We assess the group has protected or regenerated key elements of its Homeland attack capability, including: a safehaven in the Pakistan Federally Administered Tribal Areas (FATA), operational lieutenants, and its top leadership. Although we have discovered only a handful of individuals in the United States with ties to al-Qa’ida senior leadership since 9/11, we judge that al-Qa'ida will intensify its efforts to put operatives here.