Boston Marathon explosion: Other cities beef up security in response to explosions
by Ryan Teague Beckwith
The explosions at the Boston Marathon led police from Los Angeles to London to increase security.
New York City deployed counter-terrorism units at major landmarks, bridges and tunnels.
Police in London, which is hosting the next major marathon Sunday, said they are reviewing security plans.
In Washington, police put up yellow caution tape around Pennsylvania Avenue near the White House, pushing pedestrians back to Lafayette Park, and increased patrols around the city and on the subway system.
Los Angeles police said they will be adding officers and bomb-sniffing dogs to major sporting events starting with the Dodgers-San Diego Padres baseball game Monday, according to the Los Angeles Times.
The Miami-Dade Police Department announced it would be increasing security at areas of "critical infrastructure" in response to the incident.
Philadelphia Mayor Michael Nutter said security has been boosted at key historic landmarks around the city and additional measures will be taken at a May 5 run in the city.
Seattle police said they are increasing patrols in neighborhoods and around city buildings.