REPORT: Obama Skipped Intelligence Meetings in Week Leading up to Embassy Attacks

Wynton Hall of Breitbart.com reports that President Obama was not present during the daily intel briefings leading up to the horrific attacks on the US embassies in Egypt and Libya.
Could someone in the MSM please explain this?

According to the White House calendar, there is no public record of President Barack Obama attending his daily intelligence briefing–known as the Presidential Daily Brief (PDB)–in the week leading up to the attacks on the U.S. embassy in Cairo and the murder of U.S. Libyan Ambassador Chris Stevens and three American members of his staff:

9/6/2012- http://www.whitehouse.gov/schedule/president/2012-09-06
9/7/2012- http://www.whitehouse.gov/schedule/president/2012-09-07
9/8/2012- http://www.whitehouse.gov/schedule/president/2012-09-08
9/9/2012- http://www.whitehouse.gov/schedule/president/2012-09-09
9/10/2012- http://www.whitehouse.gov/schedule/president/2012-09-10
9/11/2012- http://www.whitehouse.gov/schedule/president/2012-09-11

The last time prior to the slayings that the White House calendar publicly confirms Mr. Obama attending his daily intelligence briefing was September 5^th. (The White House did not provide an official public calendar for September 8-10.) Mr. Obama and Vice President Joe Biden met with Secretary of Defense Leon Panetta at 5:00 p.m. yesterday.