eric schwartz, former rugby player, knows tackles in that game almost never involved the head. >> your thought is if they learn it without the pads, rugby style, they won't do it as much during the game. >> we hope it will carry over. it eliminates one player from basically turning their body into a projectile to blow somebody up. >> reporter: known as helmetless tackle training, he used university of new hampshire wildcats as test recruits. and he says there's some early evidence it's working. >> we've been able to identify that some of them actually decrease in the number of impacts per exposure. >> reporter: eager to help younger players, swartz and enrolled them in a study. wired with monitors they practiced tackling without helmets and pads. unh researchers counted more than 50,000 head impacted this season. >> how many times cab a high school player face contact in a game? >> they can receive 30, 40 impacts to the head in a single game. >> reporter: swarts' catching the eye of ge, under armour, and the nfl, all co-sponsors of his study. >> i understand there is a level of scrutin

our next witness is eric schwartz. he's the dean of hum sfree school of public affairs.he served as assistant secretary of state for population, refugees and any gration. the second highest position at the united nations. mr. schwartz. mr. schwartz: thank you. you ask about our vulnerabilities about our resettlement for syrians. it's really only relevant, first, if we believe if we have a national interest of resettling syrians. second, if we're confident we're asking the correct security-related questions. i'll talk about our national interest, in fact our national security interests in this program first. nobody disputes the critical national security importance of issues surrounding the syria conflict, stemming the proliferation of weapons of mass destruction, supporting our friends and allies, sustaining economic relationships, defeating isis and others and providing assistance to desperate people n demand u.s. leadership in highly uncertain times and more -- in need, all objectives that demand u.s. leadership in highly uncertain times. so how does resettlement of sy

our next witnesses eric schwartz the dean of humphreys school of , public affairs.e previously served as u.s. assistant secretary of state for refugees and migration. the second highest-ranking official in the office of the united nations commission of human rights. mr. schwartz. mr. schwartz: thank you, mr. chairman. the committee asked that witnesses discuss any vulnerabilities in the program for resettlement of syrians. this is an important issue. but it is really only relevance if we believe we have a national , first, interest in resettling syrians. second, if we're confident that we are asking the correct security-related questions. i will talk about our national security interests first. nobody disputes the critical national security importance of issues surrounding the syrian conflict, stemming the proliferation of weapons of mass destruction, supporting our friends and allies, sustaining economic relationships, defeating isis and other seeking terror,t campaigns of all campaigns that need u.s. leadership. in highly uncertain times, when more than any other