Democratic candidates take the stage together for the first time as they jockey for position in the race to take on President Trump in 2020.2020 Electionsread more
The issue over health insurance marked the first stark divide among the candidates, and sparked a heated back-and-forth between many of the candidates on stage.Politicsread more
In a strategy to draw attention away from Wednesday's Democratic debate, President Donald Trump's reelection campaign bought out YouTube's "masthead," the leading...2020 Electionsread more
Virginia Sen. Mark Warner breaks down the idea behind a bipartisan bill he introduced to provide more transparency in Big Tech.Technologyread more
The Federal Aviation Administration said on Wednesday that is has found an issue with the Boeing 737 Max that the manufacturer must address before it lifts the grounding...Airlinesread more
Tesla is working on new battery cell designs, and a way to make their own cells, with R&D teams in a lab near its car plant in Fremont, California.Technologyread more
These attacks have given the public the opportunity to examine the problems associated with ransomware, where corporations -- not obligated to disclose these attacks -- have...Technologyread more
"As a private company we don't have the tools to make the Russian government stop," Facebook CEO Mark Zuckerberg said at the Aspen Ideas Conference on Wednesday. "We can...Technologyread more
Something unusual is happening in financial markets, and it could mean more gains lie ahead for stocks, if history is any indication.Marketsread more
Underneath the impressive market rally is a trend that doesn't seem quite right, according to J.P. Morgan.Marketsread more
Wi-Fi 6 will be the next-generation wireless standard. Along with 5G, it will represent the next big shift in connectivity and data, said Irving Tan, senior vice president and...Shaping the futureread more
The market for electronic cigarettes is smoking hot. Literally, of course, but also financially.
Sales of e-cigs and their cousins, re-fillable "vaporizers," are currently a $2.2 billion market in the United States, according to tobacco analysts at Wells Fargo Securities, up from an estimated $1.7 billion in 2013. And e-cig consumption could surpass that of combustible cigarettes in 10 years, according to the same forecast.
Yet, while the popular, smoke-free, nicotine delivery tools are marketed as being less toxic than traditional cigarettes, the options for where travelers may use the devices can be hazy.
Although its rules don't explicitly spell it out, the Department of Transportation believes the existing ban on smoking on domestic and international flights of U.S. and foreign air carriers is sufficiently broad to include a ban on the use of electronic cigarettes.
"We are finalizing a rule that will address whether we should amend the existing regulatory text to explicitly ban use of electronic cigarettes aboard commercial airline flights. DOT expects the final rule will be published in the Federal Register in early 2015," an agency spokesperson said via email.
While e-cigs are sold at some airport newsstands, their use is determined by local regulations and ordinances.
A handful of airport shops operated by Paradies have been selling e-cigs since July, according to Paradies Senior Marketing Manager Justin Marlett.
The Hudson Group also sells e-cigs in some airport newsstands. Cigarettes and other tobacco products, including e-cigs, now account for less than 1 percent of Hudson's overall newsstand sales, "but while only 7 percent of that 1 percent is represented by e-cigs, e-cigarettes are the only tobacco products that are showing growth…albeit only incremental growth, " said Mike Maslen, Hudson's vice president of sales.
Buying e-cigs at an airport is one thing, using them there is another.
Rules vary airport-to-airport, and sometimes within concession-to-concession. Until earlier this year, when Minnesota enacted legislation banning e-cigarettes from government buildings, e-cigs could be used in the terminals of Minneapolis-St. Paul International Airport.
"We had no ordinance or policy banning them," said Patrick Hogan, MSP's director, public affairs & marketing, which mean e-cigs could be used in areas controlled by the Metropolitan Airports Commission. "However, concessionaires and airlines could prevent their use within their leased space. I don't know how many did," said Hogan.
Because the city of Los Angeles prohibits e-cigarettes inside public buildings, "the public is prohibited from using e-cigarettes within 20 feet of entrances to terminals, office buildings, and other on-airport properties," said LAX spokesperson Nancy Castles.
But at Denver International Airport, where some retailers sell e-cigs, "this falls under the airport's tobacco policy, so their use is only allowed in areas where smoking is allowed, such as the remaining smoking lounge on the C Concourse," said airport spokesman Heath Montgomery.
Hotels also vary widely in their e-cig policies.
While the cluster of hip Provenance Hotels in Oregon, Washington and Nashville, Tennessee, have no formal policies on e-cigs, The Warwick in San Francisco is clear that the hotel's smoking ban includes e-cigs.
And while some hotels sell e-cigs in the in-room mini-bars, "most hotels use the same policy for e-cigs as they do for traditional smoking," said Julie Faver-Dylla, executive director of the Hotel Association of Tarrant Country, Texas, which represents about 400 properties in and around Arlington and Forth Worth.
"Although we understand that oftentimes the vapor produced by e-cigs is less damaging to our properties and less offensive than traditional burned cigarettes, there many variants of those products in use, and it is not possible for hotel staff to determine which might be problematic," she said.
There is no industry-level policy on e-cigarette use on cruise lines, but "it is something that individual cruise lines are looking at," said Elinore Boeke, spokeswoman for Cruise Lines International Association, the industry's trade association.
American Cruise Lines, for example, does not have a formal policy in place for e-cigarette use, but "for our smoking passengers there is a designated area on the top deck of each of our ships. In the event we have a passenger who does use e-cigs or vapes, we encourage them to go up to the top deck as well," said company spokesman Britt Rabinovici.
On the Holland America Line, "electronic cigarettes are permitted in staterooms but not in other public areas of the ship other than on outside decks designated as smoking areas," but on Royal Caribbean Cruises, e-cigarette users must join traditional cigarette, cigar and pipe smokers in designated outdoor areas of the starboard side of most ships.
—By Harriet Baskas, special to CNBC.com. Baskas is the author of seven books, including "Hidden Treasures: What Museums Can't or Won't Show You, " and the Stuck at the Airport blog. Follow her on Twitter at . Follow Road Warrior at .