At the request of the Department of Homeland Security, the Army Corps of Engineers has undertaken numerous barrier construction projects along the border with Mexico in California, Arizona and New Mexico.
The latest projects were itemized by the Congressional Research Service in Army Corps of Engineers and U.S. Southern Border Barriers, CRS In Focus, May 22, 2019.
Some other noteworthy new publications from the Congressional Research Service include the following.
Defense Primer: Acquiring Specialty Metals, Rare Earth Magnets, and Tungsten, CRS In Focus, May 24, 2019
Legislative Purpose and Adviser Immunity in Congressional Investigations, CRS Legal Sidebar, May 24, 2019
An Overview of State and Federal Authority to Impose Vaccination Requirements, CRS Legal Sidebar, May 22, 2019