>> this week, the c-span bus travel to juneau, alaska as part of our 50 capitals tour with our cable partners gci. is traveling ahead of our stop in fairbanks. c-span,aska weekend on c-span.org, or listen on the c-span radio app. interested in american history tv. visit our website, history.an.org/ schedule,ew our archival programs, and more. www.c-span.org/history. at there back live gettysburg college of those living you for the civil war institute annual summer conference. a discussion of union spy a lisbeth van loo. you are watching american history tv on c-span3. >> good afternoon, everyone.

c-span,aska weekend on c-span.org, or lisbon on -- listen on the c-span radio app.g her weekly question session, rich prime minister theresa may answered several questions on detentions along the u.s.-mexico border. the uk's immigration policy, national security issues and how brexit is impacting the u.s. -- the u.k.'s economy. this is just under one hour. terrorists. >> order. russians to the prime minister. dr. alan whitehead. >> first of all, mr. speaker, -- >> thank you. [shouting] mr. speaker, mr. speaker, yesterday marked one year since the attack on the park mosque. it was a cowardly attack that was intended to divide us but we will not let this happen. we've been joined today by the amount of the mosque and i'm sure members from across the house will join me in

c-span,aska weekend on c-span.org, or listen on the c-span radio. "washington journal" continues. dr. paul spiegel joining us from the john hopkins. he served as the director for the center for humanitarian health. good morning. guest: good morning. the centerus about and your work on this idea of humanitarian health. guest: sure. the center for humanitarian health has three objectives. itin future humanitarians, is research. go toe a long way to improve how we actually respond to humanitarian emergencies. and finally, in power meant, ment inents, -- empowere students, governments. host: apply that to what we see at theildren being held southern border, what is the long-term and short-term effect of that happening? guest: there are short-term, medium-term, and long-term effects. there is a lot of data looking at trauma against children. started in 1995 with the centers of disease control. what happens is when you have this stress that we cvs children are under when they are separated from their parents, a actually can -- that we see these children are under when they are separated