As you might already know, Iran has been claiming a lot lately about her capability in hitting back at the American bases. My assumption is that the bluffing is meant for domestic audience.

http://news.yahoo.com/iran-hit-35-us-bases-minutes-151115760--abc-news-topstories.html;_ylc=X3oDMTNuNmIzMzFsBF9TAzIwMjIzOTg2MzAEYWN0A21haWxfY2IEY3QDYQRpbnRsA3VzBGxhbmcDZW4tVVMEcGtnAzNkMTZlODhiLWM1MzQtMzJlMC05Y2FhLWMxOTQxNGMzZDlhYgRzZWMDbWl0X3NoYXJlBHNsawNtYWlsBHRlc3QD;_ylv=3