Actually he was prepping for a presidential debate!
Obama’s schedule for September 12, 2012.
2:05 pm The President departs the White House en route Joint Base Andrews
2:20 pm The President departs Joint Base Andrews en route Las Vegas, Nevada
6:50 pm The President arrives Las Vegas, Nevada
Local Event Time: 3:50 PM PDT
McCarran International Airport
9:10 pm The President delivers remarks at a campaign event
That is correct so I hereby update my list:
I think we know the following to be true:
1. He was not in the Situation Room.
2. He was on the phone with Netanyahu for two hours.
3. He was on the phone with Hillary Clinton for an unspecified period.
4. He was on the phone with Leon Panetta for an unspecified period.
5. He was prepping for a debate.