Comparatively, the US is extremely good at 'integrating' immigrants for whatever reason they come (asylum, work, family reunification, etc). There are a lot of factors, but I'd say the biggest one is that the "American" identity is one of immigration and is generally more flexible than say, the Dutch or Norwegian identity. I'd also say the general lack of a safety net compared to more socialist countries mean you pretty much have to hit the ground running and work, which usually means learning English quickly and all of the social components that come with work.
The idea that there is an urgent need to protect the US from a significant number of people abusing the system who come via legal immigration (as is the case in this context) is, to me, pretty laughable. I would assume that any abuse in the system or strategic priority shifts (which I may or may not agree with) could easily be picked up through a more normal policy/procedure/training structure within the state department.
There doesn't appear to be a specific, recent event where a significant number of people were discovered to have gotten through some state department filter or loophole that needs to be IMMEDIATELY closed in the context of some large risk to the US.