This first photo has been the object of much speculation,
many assuming that the tarp is hiding something from the crash.
However, the object being carried is almost certainly a tent,
as noted by Russell Pickering,
who created this
The second photo shows a portion of the Pentagon's lawn being
covered with gravel.
This may seem like a suspicious action,
but it is not unusual to build temporary roads
in preparation for large construction projects.
In response to the Pentagon attack,
almost one-tenth of the vast building was demolished and rebuilt.