MARSHALL -- Veterans who served between November 11, 1990 and October 1, 2013 may be eligible for enhanced benefits through the PACT Act.   Key components of the PACT Act include:   Expanding and extending eligibility for VA health care for veterans with toxic exposures and veterans of the Vietnam era, Gulf War era, and Post-9/11 era.  Ensures every enrolled veteran will receive an initial toxic exposure screening and a follow-up screening every five years.   Requires VA research on the morality of veterans who served in Southwest Asia during the Gulf War; Post-9/11 veteran health trends; and veteran cancer rates.  [...]