Why won't this module print

This is my app.js:

var express = require('express');
var app = express();
var router = express.Router();

var someroute = require('./someroute')(router);


app.use('/api/someroute', someroute );


app.listen(3000, function () {
  console.log('Server listening on port 3000!')
});

This is my someroute.js:

module.exports = function(router) {
    var security = require('../../lib/security');

    router.post("/", function(req, res, next) {

         console.log('THIS IS PRINTING');

         security.security_function(function(err,result){
         console.log('THIS IS NOT PRINTING');
          });
    });
    //error handler
    router.use(function(err, req, res, next) {
        res.status(500).json(JSON.stringify({
            error: err
        }));
    });
    return router;
}

This is my security.js file:

exports.security_function= function() {
    console.log("THIS IS NOT PRINTING EITHER");
});

When I call the /api/sameroute url it hits the route because I can see the first console.log being printed, but then when I expect the security_function to print something nothing is printed. Then the result this function brings back I also want it to print, but it is obviously not printing since the security_function didn't even seem to run.

via user2924127