The Senate Armed Services Committee's bipartisan leaders, Sen. Roger Wicker and Sen. Jack Reed, have formally requested an investigation into the Trump administration's use of the Signal app for discussing sensitive military operations. Following a report by The Atlantic detailing messages about a military strike against Houthi rebels in Yemen, concerns have been raised regarding potential breaches of protocol and national security. Despite the White House denying any classified information was shared, critics warn of dangers posed by unsecured communications. The Pentagon’s inspector general is set to assess the situation, as scrutiny and bipartisan calls for accountability grow.