A nearly 70-foot dock that was torn loose from a fishing port in northern Japan by last year's tsunami washed ashore on Agate Beach in Oregon. Marine scientists have found potentially invasive species among the 100 tons of marine life that traveled aboard the dock. Oregon Department of Parks and Recreation/AP hide caption

itoggle caption Oregon Department of Parks and Recreation/AP

A memorial outside Seattle's Cafe Racer on Thursday, a day after a deadly shooting inside. Just a few days later, musicians gathered outside the coffeehouse for an improvised memorial jam session. Stephen Brashear/Getty Images hide caption

itoggle caption Stephen Brashear/Getty Images

Homeland Security analysts watch for threats to U.S. technological infrastructure at the National Cybersecurity and Communications Integration Center. Jim Watson/AFP/Getty Images hide caption

itoggle caption Jim Watson/AFP/Getty Images

Demonstrators with Guy Fawkes masks protest changing privacy policies on March 31, in Vienna. Ronald Zak/DAPD/AP hide caption

itoggle caption Ronald Zak/DAPD/AP

In politics, video tracking has become normal. And it's a growth industry. There are trackers working for campaigns, political parties and, increasingly, political action committees. iStockphoto hide caption

itoggle caption iStockphoto

The Seattle Space Needle's 50th anniversary is Saturday. Though the top of the Needle has been off-white for years, it's being painted its original color, "galaxy gold," for the anniversary. Dan Callister/Getty Images hide caption

itoggle caption Dan Callister/Getty Images

Several Web browsers, including Mozilla's Firefox, enable users to request additional privacy online via a "do not track" button. But there's no consensus on how much privacy the button should offer users. Leon Neal/AFP/Getty Images hide caption

itoggle caption Leon Neal/AFP/Getty Images

Protesters demonstrate at City Hall in Seattle on Feb. 16, 2011, after the announcement that police officer Ian Birk would not face charges for the fatal shooting of John T. Williams. Ted S. Warren/AP hide caption

itoggle caption Ted S. Warren/AP

Then-Capt. Brent Clemmer said Staff Sgt. Robert Bales distinguished himself as a team leader in Clemmer's C Company, 2nd Battalion, 3rd Infantry Regiment during the Battle of Zarqa, Iraq. The faces of the rest of Bales' squad have been obscured. Courtesy Maj. Brent Clemmer hide caption

itoggle caption Courtesy Maj. Brent Clemmer

A Washington State Patrol crime lab technician opens DNA sample cards containing cheek swabs sent from jails and prisons. If the state Legislature approves pre-conviction DNA sampling, the number of cards the lab processes could double. Martin Kaste/NPR hide caption

itoggle caption Martin Kaste/NPR

Gov. Chris Gregoire (left) embraces Rep. Jamie Pedersen, a Seattle Democrat, after the Washington state House voted Wednesday to legalize gay marriage. Elaine Thompson/AP hide caption

itoggle caption Elaine Thompson/AP

A crew of linemen working for Puget Sound Energy remove a power pole that fell down after a tree covered in ice fell on a transmission line near a substation in January in Olympia, Wash. Weather and tree branches cause 40 percent of power outages in the U.S. Ted S. Warren/AP hide caption

itoggle caption Ted S. Warren/AP

Oil storage tanks at the Chevron Burnaby Oil Refinery on the shores of Burrard Inlet, east of Vancouver, British Columbia. Andy Clark/Reuters/Landov hide caption

itoggle caption Andy Clark/Reuters/Landov

A screen shot from Ethical Oil's OurDecision.ca campaign, which calls on Canadians to write to Natural Resources Minister Joe Oliver asking him to ban foreigners and "their local puppet groups" from appearing before ongoing public hearings for a new pipeline project. OurDecision.ca hide caption

itoggle caption OurDecision.ca