Tunisia's political upheaval began last month after a young vendor set himself on fire after police confiscated the fruits and vegetables he sold. br br The act of self-immolation sparked a series of protests and riots that ultimately led to the end of President Zine El Abidine Ben Ali's 23-year rule.br br Al Jazeera's Ayman Mohyeldin traveled to the man's hometown of Sidi Bouzid for this exclusive report.