AFGHANISTAN, January 19 - Protest activity in Iran may increase on January 19-20. Protest organizers have issued widespread calls for demonstrations on these days. These organizers have failed occasionally to generate significant increases in protest activity in response to their calls, possibly due to discordant messaging and internal fissures within the protest movement. But protest groups are extraordinarily unified in their calls for demonstrations on January 19-20. Most major protest groups and umbrella organizations have urged citizens to take to the streets on these days.