This is a nice piece of legislation from Sens. Ron Wyden and Chuck Grassley:

The Secret Holds Elimination Act would eliminate a Senator’s ability to indefinitely hold legislation in secret by requiring Senators to submit their holds to leadership in writing and to publically disclose all holds within two days whether or not the bill or nomination has been brought to the floor for consideration.  Leadership will only honor holds that they have in writing and that comply with the two day rule.