"Zeppelin" Argus One UAV Completes Initial Flight Testing

KENNEDY SPACE CENTER, FL--(Marketwire - Apr 19, 2011) - Sanswire Corp. (OTCBB: SNSR), a developer of lighter-than-air unmanned aerial vehicles ("UAVs") and related technologies, announced today that its Argus One UAV has successfully completed its initial series of flight tests to an altitude of 500 feet. The restricted, low altitude flight tests were conducted under tower control at Easton Airport by its technical partner, Eastcor Engineering.

The initial series of flight tests involved aerodynamic assessments of the Argus One's new airship design, its envelope and stability and propulsion systems. The Argus One airship made a number of controlled ascents and descents and was flown both with and without its engine running to evaluate the airship's handling and stability characteristics. At all times during these initial tests, the airship was tethered to the ground to comply with currently applicable regulations and for safety reasons. Control of the Argus One's systems was accomplished during the flight tests by wireless line of sight digital signaling. Subsequent tests of the Argus One in Easton, MD will, among other things, evaluate the electronic flight attitude control systems, autopilot and vehicle control interfaces, sensor command and control, data exfiltration and a new propulsion system with a more powerful engine. This series of low altitude flight testing in Maryland is designed to prepare the Argus One for its upcoming flight tests at the U.S. Army's proving ground facility in Yuma, AZ where higher altitude, untethered flight testing will commence. Once the Argus One airship design has been proven in these controlled tests, the Company expects to file for an experimental license from the Federal Aviation Administration ("FAA") that will enable the Company to perform more wide scale testing of its airship.

Additionally, Sanswire Corp. announced today that it has changed its corporate name to World Surveillance Group Inc. ("WSGI"). The new name reflects the Company's intention to focus on providing enhanced global intelligence, surveillance, and reconnaissance ("ISR") and monitoring services following its recently executed letter of intent to acquire satellite based tracking firm, Global Telesat Corp. ("GTC"). WSGI has been issued a new CUSIP number by Standard and Poor's and has requested a new stock ticker symbol, which it expects FINRA to assign in the near future. The Company will continue trading on The OTC Bulletin Board (OTCBB) under the ticker SNSR until it receives its new stock symbol from FINRA. In connection with its name change and the Company's new focus and direction, the Company is unveiling a new website www.wsgi.com which includes pictures and videos of the Argus One test flights in Maryland.

Glenn Estrella, President and CEO of WSGI stated, "We are very excited by the performance of the Argus One in its initial test flights and plan to continue testing in Maryland in preparation for higher altitude, less restricted testing next month in Yuma. Each new test allows us to advance the development of our airship and we continue to believe the Argus One UAV will be able to deliver capabilities that are currently in strong demand in the marketplace today at acquisition and operating costs that makes the Argus One attractive to both government and commercial customers." Mr. Estrella added, "We look forward to working with our partners to continue the development, demonstration and commercialization of our Argus One airship."

Michael K. Clark, the Company's Chairman of the Board, added, "In connection with our desire to acquire GTC and the combined company's expected focus on providing global ISR and monitoring services through its integrated product offerings, we decided to change our corporate name to reflect the Company's new mission. We have redesigned our corporate website to more fully showcase the advances the Company has made and its new direction."

About World Surveillance Group Inc.

World Surveillance Group Inc. (OTCBB: SNSR) designs, develops, markets and sells autonomous, lighter-than-air UAVs capable of carrying payloads that provide persistent security and/or wireless communications solutions at low, mid, and high altitudes. WSGI's airships, when integrated with electronics systems and other high technology payloads, are designed for use by government-related and commercial entities that require real-time intelligence, surveillance and reconnaissance or communications support for military, homeland defense, border control, drug interdiction, natural disaster relief and maritime missions. For more information regarding WSGI, please visit www.wsgi.com, or view our reports and filings with the Securities and Exchange Commission on http://www.sec.gov.

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