Texas Gov. Rick Perry's decision to send up to 1,000 National Guard troops to the southern border is the latest move in a controversy over the influx of migrant youths from Central America, many unaccompanied, streaming into the United States. It represents concrete action over concerns raised by Perry and other Republicans that border security be given more resources generally and specifically in this case to deal with what most agree is a humanitarian crisis. The White House, which has declined to approve federal authorization of the National Guard in response to the immigration situation that has flared this year, panned Perry's idea as shortsighted and politically motivated. Here are the questions we wanted to know about Perry's plan. Why did Perry call on the guard ? Perry said those troops are needed to combat crime because the border patrol is busy dealing with the flow of immigrant kids crossing the border from Mexico. The National Guard will be a force multiplier to aid state law enforcement to reduce crime from cartels, traffickers and criminals crossing the border, Perry said. But is n't this a crisis about kids ? Perry said the border patrol is consumed with handling the influx of migrant children and partial family units, who can not be deported but must be humanely treated and cared for according to U.S. law. If unaccompanied children approach the troops,