$70,000 is the cost of each charter flight.
$250 PER DAY PER CHILD is the cost to house them.
http://www.al.com/news/index.ssf/2014/07/us_spending_252_a_day_per_chil.html
Add to that the cost of these pro-illegal immigration protesters at probably $15/hour.
Are they being bused in as well???