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Evidence markers are placed around Tomb of the Unknown Soldier at the National War Memorial in Ottawa on Thursday Oct. 23, 2014. Michael Zehaf Bibeau fatally shot reservist Cpl. Nathan Cirillo at the National War Memorial before setting his sights on Parliament Hill. Bibeau was killed just feet from where hundreds of MPs were meeting for their weekly caucus meetings. (AP Photo/The Canadian Press, Adrian Wyld)Michael Zehaf-Bibeau, 32, was Quebec native, and appeared on a government watch list.


2014-10-23 06:38:18 -0600

In this image released by Nebraska Medical Center, Ashoka Mukpo, left, an American video journalist who has recovered from Ebola, looks toward Dr. Phil Smith, medical director of the biocontainment unit, as he was released from Nebraska Medical Center's biocontainment unit, Wednesday, Oct. 22, 2014, in Omaha, Neb. (AP Photo/Nebraska Medical Center, Taylor Wilson)PROVIDENCE, R.I. (AP) — An American video journalist who recovered from Ebola is home in Rhode Island.


2014-10-23 09:17:44 -0600

How Drones Are Fighting Infectious DiseaseIn a remote area of Southeast Asia, drones are fighting a battle — not against terrorists or insurgents, but against infectious disease. In recent years, public health officials in the Malaysian state of Sabah have seen a rise in the number of cases of humans infected with this deadly parasite, which is spread, via mosquitos, from macaques to people. By mapping the communities where these cases occur, researchers hope to figure out why the parasite is spreading from monkeys to people with greater frequency, said Chris Drakeley, a professor of infection and immunity at the London School of Hygiene and Tropical Medicine in the United Kingdom, and one of the researchers involved in the project. "What we're doing is creating a detailed map, which we can then superimpose or overlay with the human and the macaque movement," Drakeley told Live Science.


2014-10-23 08:57:09 -0600