Mexico Foreign Minister José Antonio Meade Kuribreña on Tuesday challenged Texas Gov. Rick Perry’s characterization of the flow of Central American children into the U.S. as an “assault” on Americans and their security. “There’s a need to respond to the upsurge in minors, but I don’t see how the upsurge of minors threatens the security of the U.S. — and I certainly don’t see how it threatens the security of Texas,” Meade said in an appearance at The Chronicle’s editorial board. “There’s a need for a response. … That response should have a high level of humanitarian concerns within it....