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Do Loose Lips Really Sink Ships?

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In the wake of whistleblower Edward Snowden’s leaks about the NSA’s PRISM surveillance program, I keep hearing people roll out the old World War Two phrase “loose lips sink ships.” How literally, I wonder, are we supposed to take that? Have intelligence leaks ever led directly to the loss of a U.S. naval vessel before?

Maybe. Over the course of our naval history, there have been security breaches. At the same time, there have been ships and boats and lives lost. Most of the time, it’s very hard to draw a straight line from an instance of the former to one of the latter. There’s often correlation, but not clear causation. In one of these cases, the lips that might have sunk the ships were attached to a congressman.

During WWII, concerns about national security were probably higher than ever before in U.S. history, and secrecy was paramount to security and the war effort. Civilians were reminded of this through the “loose lips” posters, and many soldiers serving overseas were issued pamphlets that reminded them that…

Silence means security — If violation of protective measures is serious within written communications it is disastrous in conversations. Protect your conversation as you do your letters, and be even more careful. A harmful letter can be nullified by censorship; loose talk is direct delivery to the enemy.

If you come home during war your lips must remain sealed and your written hand must be guided by self-imposed censorship. This takes guts. Have you got them or do you want your buddies and your country to pay the price for your showing off? You've faced the battle front; it’s little enough to ask you to face this "home front."

If only someone had given a copy of that to Andrew J. May. The Kentucky democrat served in the House of Representatives from 1931 to 1947 and chaired the House Military Affairs Committee during the war. During the summer of 1943, May and other House members visited sites in the Pacific Theater and received briefings on operations and intelligence. Upon his return home, May gave a press conference and shared a little too much of what he learned.

Americans didn’t have to worry about the safety of their submarines, he explained, because the Navy had found that the Japanese were setting their depth charges—a type of anti-submarine explosive—to detonate at shallow enough depths that the subs could avoid them. May’s comments were reprinted in various newspapers, including ones in Hawaii and other Pacific coastal areas where subs were operating.

Vice Admiral Charles Lockwood, commander of the U.S. submarine fleet in the Pacific, blamed May’s leak for leading to improved Japanese tactics and American casualties. “I hear Congressman May said the [Japanese] depth charges are not set deep enough,” Lockwood wrote in a letter to another officer. “He would be pleased to know [they] set 'em deeper now." Lockwood estimated that May’s “indiscretion” directly led to the loss of ten subs and 800 seamen.

Lockwood’s accusations and estimates might not be water-tight, though. The Navy’s “Enemy Anti-Submarine Measures” report, a summary of the Pacific fleet’s experience with Japanese anti-sub weapons, makes no mention of a change in depth charge deployment after May’s leak, and says that the Japanese were never able to figure out the full depth capabilities of American subs. Even if the depth charges were set lower, the Japanese still didn’t know how low they had to go before the subs couldn’t maneuver below them. The Naval History Division’s report of submarine losses in the war, meanwhile, does mention the use of depth charges in the attacks leading to the loss of ten subs, but the reports also couldn’t conclude the exact reasons for the loss of each of those subs. The events surrounding some losses were only learned years after the war from enemy reports or other second-hand information, and may not be entirely accurate or definitive.

Representative May, meanwhile, suffered no consequences for his big mouth except some bad press. He was later caught up in scandal, though, and convicted of accepting bribes and using his position to secure contracts and favors for a munitions company. He served nine months in prison and was pardoned by President Truman, but his political career was sunk.

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Big Questions
What Are Curlers Yelling About?
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WANG ZHAO/AFP/Getty Images

Curling is a sport that prides itself on civility—in fact, one of its key tenets is known as the “Spirit of Curling,” a term that illustrates the respect that the athletes have for both their own teammates and their opponents. But if you’re one of the millions of people who get absorbed by the sport once every four years, you probably noticed one quirk that is decidedly uncivilized: the yelling.

Watch any curling match and you’ll hear skips—or captains—on both sides barking and shouting as the 42-pound stone rumbles down the ice. This isn’t trash talk; it’s strategy. And, of course, curlers have their own jargon, so while their screams won’t make a whole lot of sense to the uninitiated, they could decide whether or not a team will have a spot on the podium once these Olympics are over.

For instance, when you hear a skip shouting “Whoa!” it means he or she needs their teammates to stop sweeping. Shouting “Hard!” means the others need to start sweeping faster. If that’s still not getting the job done, yelling “Hurry hard!” will likely drive the point home: pick up the intensity and sweep with downward pressure. A "Clean!" yell means put a brush on the ice but apply no pressure. This will clear the ice so the stone can glide more easily.

There's no regulation for the shouts, though—curler Erika Brown says she shouts “Right off!” and “Whoa!” to get her teammates to stop sweeping. And when it's time for the team to start sweeping, you might hear "Yes!" or "Sweep!" or "Get on it!" The actual terminology isn't as important as how the phrase is shouted. Curling is a sport predicated on feel, and it’s often the volume and urgency in the skip’s voice (and what shade of red they’re turning) that’s the most important aspect of the shouting.

If you need any more reason to make curling your favorite winter sport, once all that yelling is over and a winner is declared, it's not uncommon for both teams to go out for a round of drinks afterwards (with the winners picking up the tab, obviously). Find out how you can pick up a brush and learn the ins and outs of curling with our beginner's guide.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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Why You Should Never Take Your Shoes Off On an Airplane
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What should be worn during takeoff?

Tony Luna:

If you are a frequent flyer, you may often notice that some passengers like to kick off their shoes the moment they've settled down into their seats.

As an ex-flight attendant, I'm here to tell you that it is a dangerous thing to do. Why?

Besides stinking up the whole cabin, footwear is essential during an airplane emergency, even though it is not part of the flight safety information.

During an emergency, all sorts of debris and unpleasant ground surfaces will block your way toward the exit, as well as outside the aircraft. If your feet aren't properly covered, you'll have a hard time making your way to safety.

Imagine destroying your bare feet as you run down the aisle covered with broken glass, fires, and metal shards. Kind of like John McClane in Die Hard, but worse. Ouch!

Bruce Willis stars in 'Die Hard' (1988)
20th Century Fox Home Entertainment

A mere couple of seconds delay during an emergency evacuation can be a matter of life and death, especially in an enclosed environment. Not to mention the entire aircraft will likely be engulfed in panic and chaos.

So, the next time you go on a plane trip, please keep your shoes on during takeoff, even if it is uncomfortable.

You can slip on a pair of bathroom slippers if you really need to let your toes breathe. They're pretty useless in a real emergency evacuation, but at least they're better than going barefoot.

This post originally appeared on Quora. Click here to view.

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