Narrative:

Approximately 10 minutes prior to departure, I called XXX flight service for an update on the boundary limits of a prohibited area, which in light of recent world events, had been changing daily. The briefer informed that the current boundary limits were 14.8 NM on the degree radial of the ZZZ VOR. Premised on this information, I decided it was safe to go. Proceeded on the mission, approximately 1500 ft doing several 360's at 9.5 - 10 NM from ZZZ, which was between 5.3 to 4.8 NM from prohibited area. An F16 appeared on my starboard wing and escorted me back to ZZZ where I was told to wait for the secret service and fbi. After a 15 min wait, I called mr X at YYY center asking him what was going on. He said I had an airspace incursion and to go home and the secret service and the fbi will contact you there, which they did. Explained the situation to them and they seemed satisfied. I knew my exact location at all times, however, with the inaccurate information I was provided with by the briefer, I did violate the airspace. Requested mr X listen to the audio tapes of XXX FSS to verify my story.

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Original NASA ASRS Text

Title: PA32 PLT WAS INTERCEPTED BY THE MILITARY AFTER BEING GIVEN WRONG NOTAM INFO ABOUT AIRSPACE CLOSURE.

Narrative: APPROX 10 MINUTES PRIOR TO DEP, I CALLED XXX FLT SERVICE FOR AN UPDATE ON THE BOUNDARY LIMITS OF A PROHIBITED AREA, WHICH IN LIGHT OF RECENT WORLD EVENTS, HAD BEEN CHANGING DAILY. THE BRIEFER INFORMED THAT THE CURRENT BOUNDARY LIMITS WERE 14.8 NM ON THE DEGREE RADIAL OF THE ZZZ VOR. PREMISED ON THIS INFO, I DECIDED IT WAS SAFE TO GO. PROCEEDED ON THE MISSION, APPROX 1500 FT DOING SEVERAL 360'S AT 9.5 - 10 NM FROM ZZZ, WHICH WAS BETWEEN 5.3 TO 4.8 NM FROM PROHIBITED AREA. AN F16 APPEARED ON MY STARBOARD WING AND ESCORTED ME BACK TO ZZZ WHERE I WAS TOLD TO WAIT FOR THE SECRET SERVICE AND FBI. AFTER A 15 MIN WAIT, I CALLED MR X AT YYY CENTER ASKING HIM WHAT WAS GOING ON. HE SAID I HAD AN AIRSPACE INCURSION AND TO GO HOME AND THE SECRET SERVICE AND THE FBI WILL CONTACT YOU THERE, WHICH THEY DID. EXPLAINED THE SIT TO THEM AND THEY SEEMED SATISFIED. I KNEW MY EXACT LOCATION AT ALL TIMES, HOWEVER, WITH THE INACCURATE INFO I WAS PROVIDED WITH BY THE BRIEFER, I DID VIOLATE THE AIRSPACE. REQUESTED MR X LISTEN TO THE AUDIO TAPES OF XXX FSS TO VERIFY MY STORY.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.