Along with most of Boston, the MIT campus is on lockdown this morning after the death of campus police officer Sean Collier in a shootout with the Boston bombing suspects last night. Fotini Christia is an associate professor of political science at MIT. Ryan Borker is a student at MIT who ran the the Boston Marathon earlier this week and saw the explosions from his hotel room. Phillip Martin, senior investigative reporter for WGBH is also reporting from Boston. They describe the shifting emotions they've experienced this week as this story's developed.
Takeaway listeners also share their messages for those affected by the Boston bombing and its aftermath.