Bill Gates had an estimated net worth of US$90.6 billion at the time. , Gates had a net worth of $95.4 billion, making him the second-richest person in the world, behind Bezos. Later in his career and since leaving Microsoft, Gates pursued a number of philanthropic endeavors. He donated large amounts of money to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation. In 2009, Gates and Warren Buffett founded The Giving Pledge, whereby they and other billionaires pledge to give at least half of their wealth to philanthropy. The foundation works to save lives and improve
USS Thomas S. Gates this time "putting to good use skills developed in February in the Caribbean Sea…" "Thomas S. Gates" then visited Hurghada, Egypt (20–23 October 1990), after which time she served as "Gate Guard" in the Gulf of Suez, screening all shipping traffic. TG 150.5 became TF-60 on 26 October, and on the 27th transited the Suez Canal. Between 28 October and 11 December, "Thomas S. Gates" operated in the central and eastern Mediterranean, evolutions punctuated by port visits to Naples (31 October-2 November), Izmir, Turkey (7–13 November), and Haifa, Israel (16–17 November), and an IMAV alongside destroyer tender at Souda Bay,