Expanding on naval blockade, US military looks to restrict Iranian land commerce

(Adds dropped word in paragraph 12)By Phil StewartWASHINGTON, Nov 7 (Reuters) - Building on a months-long naval blockade on Iran, the US military said on Saturday it is launching a task force to help crack down on Tehran's movement of advanced weapons and other sanctioned material over its land borders and through the Caspian Sea.