"Inhumane." ''Shameful." ''Intolerable." ''Brutal." Mounting revelations about squalid and dangerously overcrowded conditions at Border Patrol holding centers have fueled public outrage heading into the Fourth of July weekend, with protesters taking to the streets and social media to decry the situation as un-American and unacceptable.

The swelling furor over President Donald Trump's immigration polices comes as the administration said Wednesday that it is looking for more properties to permanently hold unaccompanied children who cross the border. Jerry Gonzalez, executive director of the Geor...