IAIN MURRAY WASHINGTON, April 29 (UPI) America's economy needs a boost. The president's economic stimulus package -- his latest proposal for tax cuts -- aims to give it just that. There are plenty of arguments against the package, however, such as the contention that it is not fiscally responsible. But there is another proposal out there that would provide a bigger boost for the economy than the president's package and enjoys bipartisan support in both the House and Senate. The Senate's Invest in the USA Act and its House equivalent, the Homeland Investment Act, aim to iron out a quirk...