Energy was the talk of the town during President Barack Obama’s visit to Brussels this week, raising expectations that U.S. gas exports could help loosen Russia’s energy stranglehold on Europe. European leaders would love to cut their energy imports from Russia, which supplies 30% of Europe’s gas and whose economy is heavily reliant on sales to Europe. But for now, many European countries depend on that gas. Mr. Obama said in a press conference Wednesday that a new trade deal with the European Union could make it easier for U.S. firms to export liquefied natural gas, or LNG, to the continent. But many obstacles stand in the way of that goal, and it’s unclear how, and if, the U.S. can really help. European worries about energy security have soared since Russian troops took control of the Crimea from Ukraine this month. Moscow in recent years has cut gas supplies during regional […]