Orlando Massacre Shows Cracks in U.S. Bid to Stop Terrorism

Is it true that the only thing standing in the way of defeating terrorism is the fact that the government (and its police agencies) is required to obey the laws of the United States of America?

Should the police agencies be allowed to incarcerate upon suspicion and without evidence or trial in order to "Protect Freedom"?

Should people who are known to be even peripherally connected to groups that use terrorist tactics and are supposedly "religion based" have some of their civil rights suspended in order to "Protect Unalienable Rights"? [WARNING - If you are a Roman Catholic, think carefully and repeat "IRA, IRA, IRA" six times before answering the question.]