LOS ANGELES (Reuters) - Some 30,000 striking Los Angeles teachers braced for a fourth day of picketing in the rain on Thursday as their union and America’s second-largest school district headed for their first bargaining session since talks collapsed last week. FILE PHOTO: Los Angels public school teachers continue to deal with the rainy weather as their strike enters its third day in Gardena, California, U.S., January 16, 2019.