U.S. Immigration and Customs Enforcement (ICE) is moving forward with plans to expand detention capacity through several new facilities across the country. According to a public solicitation document, the agency intends to sign contracts for detention centers within its Seattle, Philadelphia, Miami, and Denver jurisdictions. Together, the proposed facilities would be able to house approximately 5,500 detainees. The move represents one of the latest efforts by ICE to increase its detention and enforcement capabilities as immigration remains…