If you're interested in broad exposure to the Industrials - Aerospace & Defense segment of the equity market, look no further than the iShares U.S. Aerospace & Defense ETF (ITA) , a passively managed exchange traded fund launched on May 1, 2006.Retail and institutional investors increasingly turn to passively managed ETFs because they offer low costs, transparency, flexibility, and tax efficiency; these kind of funds are also excellent vehicles for long term investors.Sector ETFs also provide investors acce ...