Considers. S. 1653, to prohibit interstate travel in furtherance of illegal business enterprise. S. 1654, to broaden the Fugitive Felon Act to increase number of types of crime in which FBI can aid local authorities. S. 1655, to authorize granting of immunity from prosecution in labor investigations. S. 1656, to prohibit use of interstate wire communications for gambling. S. 1658 and related S. 1657, to amend the Slot Machine Act to prohibit interstate and foreign transport of gambling devices. S. 1665, to permit protection of witnesses against coercion or intimidation. S. Rpt. No. 87-586 on S. 1654 (July 24, 1961. 5 p.). S. Rpt. No. 87-587 on S. 1655 (July 24, 1961. 6 p.). S. Rpt. No. 87-588 on S. 1656 (July 24, 1961. 6 p.). S. Rpt. No. 87-589 on S. 1657 (July 24, 1961. 5 p.). S. Rpt. No. 87-590 on S. 1665 (July 24, 1961. 4 p.).