Because of flaws in Uber's background-checking system, 25 drivers with criminal records — including murder, child abuse, and assault — were allowed to drive for the ride-hailing service in San Francisco and Los Angeles, according&...

How to complain without sounding like a jerk(性格古怪之人)? Sometimes you just have to complain, but there are ways to get your point across without throwing a hissy fit(大发脾气). You will need: notes, directness(直截了当), someone to complain to, q...