A National Park Service worker uses an edge trimmer on the White House North Lawn for the first time since the the end of the U.S. Government shut down in Washington, October 18, 2013. U.S. lawmakers launched an effort to resolve budget differences in a less confrontational fashion on Thursday as Washington picked up the pieces from a political crisis and 16-day government shutdown that has slowed the economy and undermined the country's international standing. REUTERS/Jason Reed (UNITED STATES - Tags: POLITICS BUSINESS)