We can also do things like spend less on bombs ($500B less IMO), end all corporate subsidies (either tax reduction or cost shifting like agriculture subsidies) . Additionally we will save a fortune from how we presently treat poverty symptomatically. Someone in jail costs upto $168K a year, homeless people cost a fortune to the healthcare system[1]

The list goes on and on. Its cheaper to do BI than it is to do what we're already doing. It doesnt cost $3T _more_ it costs less than what we _already_ spend.

[1]: http://greendoors.org/facts/cost.php