The Army has awarded a $904 million contract modification to advance production of its next-generation air and missile defense radar, signaling plans to push ahead with the program even as testing questions persist and budget details grow murky. Raytheon Missiles and Defense will build five Lower Tier Air and Missile Defense Sensors, or LTAMDS, along with six spares under the award, which increases the total contract value to nearly $5.4 billion. The work, centered in Andover, MA, is scheduled to...