The Border Patrol says it apprehended the single largest group of migrants of the year this week. Agents at the McAllen, Texas station encountered a group of 509 migrants on Tuesday, including 115 unaccompanied children. Earlier in the day, Rio Grande City agents also encountered a massive group of 336 migrants. The Border Patrol says it would have been the biggest of the summer if not for the other group. They were from the countries of Honduras, El Salvador, Nicaragua, Ecuador, Venezuela and Guatemala.