At least nine members of a family of dual US-Mexican citizens were ambushed and killed in a northern Mexican state Monday night. The attack was grisly, even by the standards of organized crime in Mexico. And, in supplemental testimony released Tuesday, ambassador to the European Union, Gordon Sondland, presumed there was a quid pro quo in the Trump administration's withholding of US aid to Ukraine pending an anti-corruption investigation, according to an excerpt released by congressional impeachment investigators. Also, scientists in Poland recently published a paper detailing the peculiar case of a group of cannibal ants that escaped an abandoned nuclear bunker.