steal("en.json", "messageformat.js", function( translation ) {

    var mf = new MessageFormat("en"),
        cache = {};

    // Add EJS helper
    can.extend( can.EJS.Helpers.prototype, {

        message : function( key, data ) {
            if ( ! cache[ key ] ) {
                cache[ key ] = mf.compile( translation[ key ] || "ERROR: <" + key + "> NOT DEFINED" );
            }

            return cache[ key ].call( this, data || {} );
        }

    });

});