In this task, you are given a sentence in the Romanian language. Your job is to translate the Romanian sentence into the English language.
Example: Un bărbat pune brânză mărunțită pe o pizza.
Example solution: A man is spreading shreded cheese on a pizza.
Example explanation: In the given translation process, the tense of both sentences, quantitative measures, entity name, the polarity of the sentence remains the same.

Problem: Departamentul pentru Securitate Internă a anunțat marți că a numit trei companii care să continue cercetarea modalităților de a stopa atacurile armate trase de pe umăr.
Solution: The Department of Homeland Security announced Tuesday that it has selected three companies to continue research into ways to thwart shoulder-fired missile attacks on U.S. commercial aircraft.