AN Israeli businessman has come up with his own way of staying in business. When Facebook threatened Rotem Guez with a lawsuit (诉讼) over allegations (指控) that his company had violated (违反) the social networking site’s terms of service, Rotem Guez responded by having his name legally changed to Mark Zuckerberg, the co-founder of Facebook. He now has the ID and passport (护照) to match his new identity.