They appear tied to light poles and trees, taped to storefronts and random structures. The laminated paper signs read “ICE secuestró alguien aquí” or “ICE kidnapped someone here.” A date and time of the federal immigration arrest is written in marker. Below that: 855-435-7693, the phone number of the Illinois Coalition for Immigrant and Refugee Rights support hotline for people to report other arrests or to seek assistance if they know someone taken by federal authorities. The signs appeared in late October across the Southwest Side, which was heavily targeted under President Donald Trump’s aggressive deportation effort dubbed “Operation Midway...