VENICE Only 200 guests and gondolas to spare — Venice authorities moved on March 29 to dampen speculation about the upcoming wedding of Amazon tycoon Jeff Bezos , promising no disruption. The tech billionaire and his fiancée, journalist Lauren Sanchez, are tying the knot at the end of June, a decade after the Italian watery city hosted the star-studded nuptials of Hollywood actor George Clooney and lawyer Amal Alamuddin. One Italian newspaper said the Bezos wedding would be "three non-stop days