Barry's "Katrina moment."
http://www.washingtontimes.com/news/2014/jul/7/usa-today-reporter-calls-border-crisis-obamas-katr/#.U7
Its a trap of his own making
If he ignores the illegals, it will anger the pro amnesty people.
If he goes, he will be compelled to tell them they can stay, which will anger everyone else.
So -
I suspect he will go 'in secret'* - so there will be no reports about what he said or didn't say, and everyone will take home from it what they want to believe. Just like 'Hope and Change'.
*('in secret' may mean 'not at all', but a report may surface that he met with some illegals in an undisclosed location, with no details about what was said by anyone.)