A reported bomb threat forced Alaska Airlines flight 342 to make an emergency landing Monday morning at Oakland International Airport, Silicon Valley Mercury News and KCBS report.According to ABC-7 News, two passengers were escorted off the airplane by federal marshals after the plane landed. KOMO reports that the other passengers were taken to a "secure area" to be screened.According to a tweet from KCBS, the bomb threat was made with a note at San Francisco airport.