Hot shot: the wider promise of weight-loss jabs

First they treated diabetes. Then obesity. Now GLP-1 drugs are being tested on a range of other diseases too. Though the US economy is roaring, many Americans are glum about its prospects. How could that affect the election (9:02)? And our podcast on why Chinese migrants are making perilous journeys through the jungle to reach America (16:55).Listen to what matters most, from global politics and business to science and technology—Subscribe to Economist Podcasts+For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.