Malaysia Airlines had been struggling even before two of its flights were lost this year. Analysts say the national carrier faces either bankruptcy or privatization. Mohd Rasfan/AFP/Getty Images hide caption

itoggle caption Mohd Rasfan/AFP/Getty Images

The Air Force's U-2 spy plane first took flight in August 1955. One of the planes confused air traffic control computers in California last week, creating havoc. USAF/Getty Images hide caption

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The charred tail section of Delta Flight 191 sits near a runway at Dallas-Fort Worth International Airport in August 1985 after it crashed on approach. Delta quickly retired the "191" designation. Carlos Osorio/AP hide caption

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Passengers wait in line at Hartsfield-Jackson International Airport on Thursday. A major snowstorm has delayed flights from Atlanta to New York. David Tulis/AP hide caption

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A passenger checks his cellphone while boarding a flight in Boston. The Federal Communications Commission is proposing new rules to allow using cellphones for data and voice calls during airline flights. Matt Slocum/AP hide caption

itoggle caption Matt Slocum/AP

The new head of the Federal Communications Commission says his agency is reviewing restrictions on in-flight cellphone use. Here, a passenger looks at her cellphone before a flight last month. Matt Slocum/AP hide caption

itoggle caption Matt Slocum/AP

The new head of the Federal Communications Commission proposes allowing airline passengers to make phone calls during flights. Here, a passenger looks at her cellphone before a flight last month. Matt Slocum/AP hide caption

itoggle caption Matt Slocum/AP

An expert FAA advisory committee has recommended that airline passengers be allowed to use most personal electronic devices below 10,000 feet. Leonardo Patrizi/iStockphoto.com hide caption

itoggle caption Leonardo Patrizi/iStockphoto.com

This aerial photo shows the wreckage of the Asiana Flight 214 airplane after it crashed at the San Francisco International Airport on Saturday. Marcio Jose Sanchez/AP hide caption

itoggle caption Marcio Jose Sanchez/AP

The wreckage of Asiana Flight 214, a Boeing 777 airliner, is seen after it crashed at the San Francisco International Airport Saturday. The crash-landing killed two teenage Chinese girls, the airline says. Marcio Jose Sanchez/AP hide caption

itoggle caption Marcio Jose Sanchez/AP

A graphic released by the TSA earlier this year announced coming changes to the agency's Prohibited Items List, which it said would allow small knives. The TSA now says those items will remain banned from carry-on bags. TSA hide caption

itoggle caption TSA