Source: Tech – South China Morning PostAlphabet Inc’s Google and Amazon.com Inc defended their smart-speaker businesses as US senators warned the grip the companies have over the market could harm competition and consumer privacy.Republicans and Democrats at a hearing Tuesday raised concerns about what they said were anticompetitive practices such as selling devices below cost and promoting their own services over those of competitors on their platforms.Senator Amy Klobuchar, the Minnesota Democrat who chairs the Senate Judiciary’s…Read More