This week's calls to action include the following events and activities. (All are free and open to the public, unless otherwise noted.)

Cala and Brizard joint meeting

Rochester City School interim Superintendent Bill Cala and incoming Superintendent Jean-Claude Brizard will hold a town-hall-style meeting from 7 to 9 p.m. on Thursday, December 13 at School 4, 195 Dr. Samuel McCrey Way.

Business group focuses on Zero Tolerance

The Hudson Business Association will hold its year-end meeting to discuss Zero Tolerance and policing policies at 6 p.m. on Monday, December 17, at 1370 Hudson Avenue.

9/11 conspiracy film

Rochester 9/11 Truth and Patriots of Western New York will show the documentary film by Dylan Avery "Loose Change Final Cut," which claims that the attacks of 9/11 were orchestrated from within the US. The showing is at 7 p.m. on Tuesday, December 18, at the Cinema Theatre, 957 South Clinton Avenue at South Goodman Street. Tickets: $8

Free computers for kids

The city will offer an opportunity for youths ages 6 to 14 to earn a free refurbished computer and training during a free 10-week KidTech Computer Course. There are two sessions: January 8 to March 20 and April 22 to June 26. Enrollment information: 428-7934.

Peace vigils

Local peace advocates from the faith community will hold "Bring Them Home Now" vigils at three locations on Wednesday, December 19: 220 South Winton Road from 7:30 to 9 a.m.; the corner of Park Avenue and Culver Road from 7:30 to 8:30 a.m.; and 644 Titus Avenue from 7:30 to 9 a.m.

Pot luck and serious discussion

The Rochester Committee on Latin America will hold a pot luck and a talk, "Understanding the Crisis that is America," with the Rev. Philip Wheaton, at 6 p.m. on Friday, December 14, at Downtown United Presbyterian Church, 121 North Fitzhugh Street.