Tell-tale signs U.S. gearing for another war! Iran or North Korea?

densely - gęsty
Because of its location in densely populated central New Jersey, the base agreed to demands of nearby residents to restrict its noisy air operation for the giant C-130 Hercules and massive C-5A after 11:00 PM.

to hum - szumić, brzęczeć, nucić
According to residents in and around McGuire AFB, the base was humming with an alarming number of huge military cargo aircraft landing and taking off yesterday- and those activities continued about every ten minutes into the early hours of today.

grim - poważny, surowy
The expressions on their faces turned instantly grim and they all got quiet

Źródło: http://turnerradionetwork.com/index.php?option=com_content&view=article&id=74:tell-tale-signs-us-gearing-for-another-war-iran-or-north-korea&catid=1:latest-news&Itemid=50