Tyler is an independent journalist and writer in Washington. From 1979 to 2006, he worked for the Los Angeles Times, mainly as a foreign correspondent covering events in Europe, Asia and the Middle East. He also served as the paper’s diplomatic correspondent in Washington, where he wrote about foreign affairs from the State Department, Congress and the White House. His journalism awards include a Pulitzer Prize in 2004 for a report on the impact of Wal-Mart as a global economic force and a George Polk Award in 2003 for "The Wal-Mart Effect."
After leaving the Times, he has worked as a writer and communications specialist for the Los Angeles-based humanitarian aid group International Medical Corps, traveling for them to Darfur, Northern Uganda, Kenya, Afghanistan and Haiti. Between 2010 and early 2013, he worked for the Special Inspector General for Iraq Reconstruction, traveling frequently to Baghdad as part of his assignment to help write a quarterly report to Congress that tracked the expenditure of $61 billion in U.S. taxpayer money allocated to rebuild Iraq was spent.