Isabelle Morin has been charged in connection with an incident on Highway 73, the Crown said Tuesday.
A live video feed set up by the Idle No More group shows a number of protesters inside the office, some holding up an upside-down Canadian flag.
During the company's annual shareholder meeting in Calgary, Porter said Canada's ongoing slide in productivity behind its global peers is a major problem that needs to be addressed.
Food services, other than basic flight services, have been suspended until taps are flowing again.
David Stephan, 32 and his wife, Collet, 35, are in the middle of a jury trial on charges of failing to provide the necessaries of life for their son, Ezekiel, in March 2012.
The documents shed new light on the controversial Saudi deal, as well as the Canadian government's view of the murky world of Canadian arms exports to a volatile region.