The 21st century will be defined by security threats that transcend borders, from climate change, nuclear proliferation and terrorism to conflict, poverty and economic instability. The greatest test of global leadership will be building partnerships and institutions for cooperation that can meet the challenge.

On January 14, Brookings Vice President and Director Carlos Pascual and Politico's John Ward Anderson discussed how President-elect Barack Obama can restore credible American leadership.

Every Wednesday at 12:30 p.m. between the election and the inauguration, Brookings experts and editors and reporters from the Politico will host “The Scouting Report,” a live web chat discussing pressing issues facing our president-elect.