Third-grader Ari Lavine doesn't mince words when it comes to what happened to the 14-year-old boy who was arrested in Texas last month after officials determined that the homemade clock the teen brought to school to be a hoax bomb.

"It's pretty ridiculous," Lavine said Saturday of Ahmed Mohamed's ordeal.

The 8-year-old Lavine was among about 40 children who gathered Saturday in the Curious George Room at the Cambridge Public Library to build clocks in honor of Mohamed, whose arrest in September ignited a national debate about racism and profiling.

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