Workers at the Department of Homeland Security's National Operations Center in 2015. The Obama administration proposes $3.1 billion in upgrades to federal computer systems.
Jim Watson/AFP/Getty Images
L: Republican vice presidential nominee Mike Pence speaks at a campaign rally Aug. 31 in Phoenix. R: Democratic vice presidential nominee Tim Kaine speaks at a campaign event Aug. 1 in Richmond, Va.
L: Ralph Freso R: Alex Wong/Getty Images
Syrian refugee Maryam al-Jaddou sits with her children Maria (left) and Hasan in their apartment in Dallas. Jaddou says she decided to leave Syria in 2012 after her family's home in Homs was bombed and there was nowhere safe left to live.