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Pharmaceutical company Merck announced on Tuesday that it has received positive results from Phase III trial of Keytruda drug. The company stated that the drug met its two primary endpoints in the study as first-line treatment for patients with melanoma.

In the trial, the company has included a total of 834 patients. The patients were given Keytruda 10mg/kg every three weeks, Keytruda 10mg/kg every two weeks, or four cycles of ipilimumab 3mg/kg every three weeks. According to the company, the patients who received Keytruda showed meaningful improvement in overall survival, compared with patients receiving Bristol-Myers Squibb Co.'s ipilmumab and Yervoy.

Last week, e-commerce company Amazon was awarded with an 'experimental airworthiness certificate' by the Federal Aviation Administration (FAA).

The certificate allows Amazon to test a delivery drone outdoors in the US as the company wants to deliver packages to customers by air. At a congressional hearing on Tuesday, Amazon blasted the FAA for the delay in the approval of commercial drone testing.

Paul Misener, Amazon's vice president for global public policy, told lawmakers at the hearing that the approval is too little and too late. According to him, the six-month delay in approval made the test delivery drones obsolete and irrelevant as the company has already moved past the drone design that regulators approved last week.

The Associated Press carried out an interview of Burmese slaves sitting on floor staring through the bars of the cage in which they were locked. These slaves were on a tiny tropical island thousands of miles away from their home.

An Associated Press video camera also captured few salves loading cargo ships with slave-caught seafood, a few yards away.

The seafood caught by the slaves is the major source of supply to major supermarkets, restaurants and even pet stores in the United States.

Eight imprisoned men were considered a flight risk as there were laborers who might dare to run away. These slaves live on very less rice and curry a day and have barely enough space to lie down.

San Antonio announced on Tuesday that ride-sharing company Uber cannot operate in the city. But, the neighboring towns of the second most populous city in the state of Texas said that they want the company provide its ridesharing services in their cities.

Earlier this month, San Antonio officials signed off a rule which requires drivers to have permission to operate in Alamo city. According to reports, if a driver picks up a passenger in nearby cities, the Uber driver will not be able to use streets of San Antonio to reach at the destination.

Lexmark International, an American corporation that manufactures laser printers, announced that it would buy software developer Kofax for $1 billion to boost its software business.

According to Lexmark, the deal would help its Perceptive Software business to achieve its revenue target of $500 million in 2016. It would also add about 10 cents per share to the company's adjusted profit in 2015.

This is the deal made by Lexmark in recent years. The deal has changed the company from a primarily printer maker to a printing, imaging and software company.

Kofax provides data services to financial, insurance and health care companies such as Citigroup, Metlife and Humana. The financial advisor to Lexmark and Kofax are Goldman Sachs and Lazard respectively.

The U.S. Government is revising its definition of a farm. As per the new definition, some people who receive farm subsidies but do not carry out any sort of work would receive less government money.

Congress last year assigned the Agriculture Department a task of creating a new definition for what it means to be 'actively engaged' in farming, a criteria to receive subsidy.

USDA on Tuesday proposed that farms must document their managers and must put in 500 hours of substantial management work annually or 25% of the time necessary for the success of the farming operation to qualify.

Agriculture Secretary Tom Vilsack said, "We want to make sure that farm program payments are going to the farmers and farm families that they are intended to help".