Actually, the way that Hannity "phrases" his concern, ie. terrorists after 9/11, is about the only way you will hear Congress talk about this, except for some really smart, brave Republicans---
I predice Jeff Sessions may be one.
The problem is ALL of them are politicians that need votes and none of them would want to offend the Mexican-American vote---therefore, they will frame it as a "terrorism" problem rather than a societal problem (which bothers me a lot).
We need to keep sounding the alarm of the invasion as destructive of both cultures.