In two-thousand-and-seven, Hilton was in trouble. The hotel company had lost its competitive edge and had acquired massive amounts of debt. On top of that – there was a global financial crisis brewing. Private equity firm Blackstone Group bought Hilton for 26-billion dollars, and brought in a new C-E-O… Christopher Nassetta. (nuh-SET-uh) He sat down with Fortune’s Susie Gharib and described what it was like to lead the company during this time.