Evidently the president will be back in town again on 7/23 and 7/24, so the FAA is telling aircraft owners and pilots (that includes RC folks) that there can be no flying at any location under the NOTAMs during these times & places:
- From Monday, 7/23 at 2:30p and continuing until 9:15a PDT on Tuesday, 7/24
- Map of the affected areas (the whole of the Bay Area, effectively)
More details are available directly from the FAA web site.