After 14 year-old Ahmed Mohamed was arrested and suspended by Texas school officials and cops, all of whom mistook his homemade clock for a bomb, Twitter lit up with cries of stereotyping and racism. Even President Barack Obama took to Twitter to invite Ahmed to the White House. Most observers agree the school and police handled the situation very badly. But there is strong disagreement over what assumptions were made that resulted in the teen being put in handcuffs.