London Marathon Reviews Security PlansPlay
In London today, Margaret Thatcher's funeral has ended, and Scotland Yard is looking ahead to the next security challenge: the London Marathon on Sunday.
Last year, 37,000 people completed The London Marathon.
Organizers say they're reviewing their security plans for the race after the bombings at the Boston Marathon on Monday.
Sports security specialist David Lowe told the BBC that he expects more crowd surveillance, in addition to heightened security.
- Richard Conway, sports reporter for the BBC. He tweets @richard_conway.
This segment aired on April 17, 2013.