I suggest you read this
Your children WILL be in private or home school after reading this
I read it twice back to back. Scared the hell out of me, particularly since I am a teacher.
Many thanks, but I finished that one last week, and recommended it to a FReeper/teacher last night ;)
I read One Second After and it was excellent.
His Lost Regiment series SciFi is a romp too if you haven’t read them.