During his campaign, President Trump talked about revoking DACA, the executive order signed by President Obama that protects young immigrants from deportation. As public debate looms, Latino USA revisits an episode that illustrates what's at stake. In 2013, a group of young undocumented activists known as the Dream 9 staged one of the riskiest protests in the history of the immigration rights movement. They willingly left the U.S. to Mexico, and then demanded to be let back into the country despite lacking legal status. Their efforts landed them in detention—and in the national spotlight.