White Americans, especially older citizens, tend to be more bothered than Black Americans or Latinos by demonstrators waving Mexican flags - and even US flags - during protests.
Adriana Smith's body was kept on life support for 16 weeks so her fetus could gestate. Abortion politics don't capture the ethical complexities of such situations.
Iran has a long history of enriching uranium in an effort to develop nuclear weapons. It's not clear how far the US attack set back Iran's production of bomb-grade uranium.
Democratic governors and President Donald Trump agree to fight an invasion of non-native fish that has spread up the Mississippi River and threatens the Great Lakes.
The US and other countries have a legal definition of citizenship, yet human psychology and identity politics result in ingrained biases over who truly belongs.