IMF chief Kristalina Georgieva calls US debt load 'mind boggling'

International Monetary Fund Managing Director Kristalina Georgieva praised the strength of the U.S. economy but warned its current level of deficit spending was not sustainable and could crimp U.S. and global growth if it's not brought under control, in remarks Monday at the Milken Institute Global Conference.

Servicing the U.S debt — now roughly $34 trillion — consumes more than 17% of federal revenue, compared