A wide assortment of illegal/massive immigration supporters have used variants of the phrase "safe, legal, and orderly flow of people" referring to immigrants or guest workers from Mexico and other countries. In a way, it's a shibboleth letting us know that the speaker is, in a manner of speaking, a "pod person":
* 2006, the Canadian government spoke of a "safe, humane, and orderly repatriation of Mexican nationals".
* 2009, after a meeting with Felipe Calderon, change.gov released a statement containing: "President-elect Obama underscored his commitment to working with Congress to fix the broken U.S. immigration system and fostering safe, legal and orderly migration."
* 2014, the Obama administration said they were undertaking a "discussion of how the United States and Central American governments are cooperating to promote safe, legal, and orderly migration between our countries."