The nation's civilian "high" alert -- the second highest level of warning -- was put in place Tuesday.

CNN: Al-Jazeera airs purported al Qaeda message

Bangladesh has put troops on high alert along the 200-kilometer border with Myanmar, said Shamsul Haque, Bangladesh's state minister for home affairs.

CNN: STORY HIGHLIGHTS

Japan's Defence Minister Itsunori Onodera said his nation was on "high alert", with anti-missile defences deployed in Tokyo as a precaution.

BBC: South Korea raises alert with North to 'vital threat'

In the wake of the federal raid and domain seizure of Megaupload.com, other file-sharing websites are on high alert in case of similar actions.

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WhatsApp Messenger for BlackBerry 10 provides a high quality messaging experience that utilizes real-time push notifications to alert you when you receive messages- even when the screen is locked.

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To an extraordinary extent -- and with good reason -- the city considers itself on permanent alert, with a high level of vigilance that is our best protection.

CNN: Terror in N.Y.? Whaddya gonna do

Should there be additional selling in the rest of the sector, traders should be alert to the potential for profit-taking in a high-flying utility stock such as Oneok.

FORBES: Utility Sector Sell-Off Sets Up Nice Bullish Trades, Fatter Yields

New York has been on "orange" alert, or the second-highest level -- indicating a high risk of terror attack -- since the color-coded warning system was established after the September 11, 2001 attacks.

CNN: New York subway system on alert

Its Burst Alert Telescope is set up to catch the intense but fleeting flash of very high-energy gamma radiation that initially signals a GRB event.

BBC: Observatory detects record burst