General Merrill McPeak, retired four-star general and former Air Force Chief of Staff, on what America's options are for hotspots like North Korea, Israel and Iran.David Fanger, Senior Vice President at Financial Institutions Group, at Moody's, on their 2018 outlook for US and global investment banks.Brian Chappatta, US Treasuries reporter, on bond titans' top trades for 2018.Jamie Butters, US autos reporter for Bloomberg, on how Ford's Lincoln Brand is losing luster in the crowded luxury landscape, and may not justify a US presence.