According to Wiki: "Sickle cell disease occurs when a person inherits two abnormal copies of the β-globin gene (HBB) that makes haemoglobin, one from each parent". So basically this disease is encoded in DNA and it can be predicted whether future child will inherit it. Mandatory DNA screening could result in zero people having this disease (and other expensive to treat or incurable diseases). There will be no need to spend large money researching it, and those money can be used for more important non-genetic diseases.
Of course, religious people would be against this but we as a society should rely on science, not on blind faith.
You trust the government to decide who can and can't reproduce? You see no problem with this?
You see no room for abuse here?
There's already tests to show parents many diseases detected early on. It's just not mandatory to terminate.
What tests are you talking about that should be done BEFORE conception!?
Supporting a test that says you have X gene and that might result in a problem so you can't reproduce is a ridiculous stance to have.
You seem to have no knowledge about current medical screenings and no regard for human liberty.
DNA test that detects errors (invalid sequences) known to cause serious illnesses. I think everyone who is considering to have children, should take such a test because he or she can be a carrier of invalid DNA which can be inherited and ruin life for a child. People should behave responsibly.