(AP Photo/J. Scott Applewhite) Senate Judiciary Committee Chairman Patrick Leahy arrives as his panel questions top Obama administration officials about the National Security Agency's surveillance programs on Wednesday, July 31, 2013. A fter a brief hiatus, legislative reform of the NSA’s bulk collection program appears to be back on track. Thanks to skillful negotiations on the part of Senator Patrick Leahy, Democrat of Vermont, and other cosponsors, the version of the USA Freedom Act that was unveiled in the Senate last week restores many of the protections that House leadership and administration officials stripped out of the House version in secret, last-minute talks. Most notably, the Senate bill clearly would prohibit the bulk collection of Americans’ telephone records and other types of information. And yet, even if the Senate version becomes law, Americans’ private information will remain vulnerable—under both the domestic programs addressed by the bill and other, much larger...