VIDEO: The U.S. believes higher tariffs against Chinese goods can help level the playing field and reduce the massive trade imbalance between the two countries, but China is fighting back with its own tariffs. Who wins and who pays? Greta Van Susteren takes a look at the escalating trade war between the world’s two largest economies.

ON THIS DAY IN AMERICAN HISTORY On May 29, 1848, Wisconsin enters the union becoming the 30th state. French explorer Jean Nicolet was the first European to explore the area in 1634. At the conclusion of the French-Indian Wars in 1763, what would become Wisconsin was the center of a lucrative fur trade. After the Revolutionary War, the U.S. ostensibly governed of the area, but it wasn’t until after the War of 1812 that the U.S. took control from British fur traders. With the opening of the Erie Canal in 1825, settlers began arriving, attracted by the agricultural potential. Today, Wisconsin, home to nearly 6 million people, is known as “America’s Dairyland” and is most famous for its cheese.

VIDEO: U.S. authorities and other personnel dealing with the influx of migrants at the U.S. border with Mexico are seeing more people from indigenous regions in Central America who only speak Mayan. That’s creating a communications problem between the migrants and border agents, medical staff and immigration officials who work with them.

Rights groups are raising concerns about the lack of due process for hundreds of suspected IS fighters in Iraqi prisons as Baghdad this week condemned six French Islamic State members to death.

VIDEO: Whether you live in a city of somewhere more rural, there are always particles in the air, invisible to the naked eye that could make you sneeze or cause major illness. Detecting these microscopic materials such as pollen, mold and pollutants could be time consuming and costly. A lab at the University of California, Los Angeles, is trying to solve that problem by developing a handheld allergen detector for consumers.

Ghana is preparing for its first population and housing census, which will be conducted digitally next March, joining Swaziland, Malawi and Kenya as one of the first countries in Africa to collect data electronically.