The legit refugees aren't the problem. It seems that the Isis strategy of embedding some of its battle hardened fighters into the stream of refugees has been very successful. They even had the foresight to know that the refugees would find open arms even in the US. They need to suspend the US plan for taking in refugees indefinitely and rethink the whole process.

Helping refugees is a great long term option. They just need to be allowed after careful and sufficient scrutiny. I would submit even polygraph tests.