BOISE, Idaho (AP) — Three Idaho families who are U.S. citizens and lawful permanent residents are suing after they and hundreds of others were detained for hours during an aggressive immigration raid at a rural horse racing track last year. The families say state and federal law enforcement agencies conspired to use unconstitutional and illegal tactics during the raid, including detaining people because they appeared to be Latino; keeping adults and some children in zip ties for hours without access to food, water or bathrooms; and searching individuals without reasonable suspicion of a crime. Similar immigration dragnets marked by a heavy use of force have entangled U.S. citizens and legal residents in other states.