Tashfeen Malik and Syed Farook are pictured passing through Chicago’s O’Hare International Airport in this July 27, 2014 handout photo

Tashfeen Malik, (L), and Syed Farook are pictured passing through Chicago’s O’Hare International Airport in this July 27, 2014 handout photo obtained by Reuters December 8, 2015. REUTERS/US Customs and Border Protection/Handout via Reuters